The below is all my own speculation, always view things through intuition as my understanding may be incomplete or corrupt.
The most important thing(from my own current understanding) when "accepting yourself" is knowledge of who you currently are. After all, you need to set a baseline before you modify anything so that you know how far you've come from where you started.
In order to obtain understanding of who you are requires one of four circumstances.
1. Knowledge of astrology(which will set your baseline to birth)
or knowledge of multiple physical respresentations of astrology(such as Palmistry and Physiognomy) to understand how you differ from your birth baseline. Palmistry shows your birth baseline on one hand and your current baseline on another, however, Palmistry misses some things so it is best to include something like Physiognomy as a compliment. From my understanding the astrology chart you are born with changes through spiritual intervention(For instance your dedication ritual) and as a result what is displayed in your astrology chart may not be 100% accurate to your current self. After all, an object in motion stays in motion unless acted upon by an outside force, therefore, you will follow the flow of fate unless you are acted upon by an outside force, which, in this case, can be curses, as well as spiritual workings.
2. A perfectly clean mind, body, and soul. When one speaks of who they are, often times they are mislead by psychological hangups among other things(karma, curses, blockages, etc.) and as a result face interference in understanding themselves. When ones mind, body, and soul are completely clean they won't face such interference and will be able to understand themselves instinctively.
3. Spiritual advancement and workings for understanding yourself. You could also do divination if you are experienced in things like scrying, however, astral interference is a real posibility and you may see falsehood, or even a false reality conjured by your mind. I'm sure I don't need to explain the risks with divination in terms of true and false information to you.
4. Revelation. I can only recommend you talk to Father Satan and your Guardian about your concerns and worries of this. Ask to be guided to what can allow you to gain understanding and be open to the signs presented. Something to be conscious of during this process is your thought processes. Here's are two amazing threads, one of which by HP Hooded Cobra which touches on this beautifully.
How To Interpret & Understand The Messages Of The Gods(
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Just talk to Satan(
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Once you've established a baseline and understand who you truly are, you may find some things you don't like, however, no matter how these things appear within your mind you must accept that these things are who you truly are
CURRENTLY as the first step to fixing any problem is recognizing that the problem exists.
An example is in my astrology chart I am a very volitale person sexually who may resort to rape as a result. This part of who I am is a very nasty part, something which can lead me to hurting someone, and yes, I find that disgusting, however, I recognize this as a part of who I am.
If you don't recognize and accept that the problem exists you can't even begin to fix it.
Remember, your astrology chart is influenced by external spiritual factors such as curses, meditation, workings, etc. As a result, you may find that you feel certain things which your astrology chart doesn't list, this can be a result of recent karma(as past life karma would show in the birth chart), curses, or other things. Your astrology chart is only the baseline of your birth, your current baseline and current astrology chart will be different.
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Once you've found the parts of yourself which doesn't allign with you can do workings on the specific issues. Do note that these issues can be caused by different things and it may be easier to one or more problems a specific way. For instance, for psychological problems, it may be better to CBT(Congitive Behavioral Therapy) instead of a working. Of course, the best solution would be to combine a working with an activity, that way the working has a clear pathway for energy to flow and will make what you're doing solve the problem much easier.
In order to find out what you should do for each specific problem I would recommend a deep trance followed by meditating on the problem. Often times you already know the answer to the problem. Here's a thread a member made discussing this
How to access your hidden knowledge(Tutorial)(
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You can do freeing the soul workings for the aspects you don't like about yourself. As for aspects you can't currently change or hold no actual basis in reality(such as not liking that your hair is naturally wavy instead of naturally straight) you should do workings for your mindset instead of trying to change your hair through genetics as this will bear more fruitful results.