There are few reasons why spells don't work. The primary reason could be that you do not currently have that much power in your soul to bring about this reality that you desire. The secondary reason could be that the working is not done enough. Unless you're already at the advanced level, spells are not a one shot deal. It'll have to be done over and over again. What this means is that you'll have to keep at it for some days using the same pattern of magic. Doing a working for 40 days makes it work. Or 90 days for deep seated issues.
As for the primary solution you'll need to do daily power meditation including breathing exercises, yoga(hatha in morning and kundalini at night), chakra work(daily chakra meditation depending on the day) using Sanskrit vibrations and visualization+ trance and energy work.
http://www.angelfire.com/empire/serpentis666/ASHTAR.html
If you haven't already start hphooded cobras 40 days meditation program and then 6 months spiritual warfare program. Can be found in jos library.
The secondary solution is doing a runic/Sanskrit working. For example GEBO can be used for love magick (108 vibrations from 40/90 days with particular affirmation). Or Sanskrit AUM SHUKRAYA NAMA using the same formula. You should check the SS calendar to see when you can begin a Venus working. No working should start on a void of course. And for maximum effect a love spell should be started at the hours of Venus on friday and done everyday in hours of Venus. (The first day, the hour when you start it shouldn't be void)
https://ancient-forums.com/viewtopic.php?f=5&t=1624
If the energy is to be directed at a particular person youll need to evoke it while if you want to be generally good with women you need to invoke it.
Affirmation is important. Before any working you need to affirm clearly to yourself *9 or any multiple of 9 what exactly it is that you intend. For example I may say something like "In a healthy and positive manner I am completely, and certainly getting into a fulfilling love/sex relationship with ***". Where *** is the name of the woman. This is an affirmation where you'll need to direct the energy(evokation). Along with this method you can add daily love magick to your target and an addendum trance induction while at night(when she's asleep. While giving her the command make sure to form a third eye connection from you to her for maximum impact). After the ritual do the same affirmations again for the same number of times. Laser intent is required. KNOW that you ARE ALREADY what you desire to be.
http://www.angelfire.com/empire/serpentis666/Love_Spell.html
http://www.angelfire.com/empire/serpentis666/Sex_Magick.html
http://www.angelfire.com/empire/serpentis666/AURA.html
http://www.angelfire.com/empire/serpentis666/Evocation.html
The second affirmation is personal and the energy is supposed to be invoked. I might say something like. Its supposed to be make you good with women in general.
"In a healthy and positive manner ,women that I desire sexually fall deeply in love with me and desire me sexually,physically and emotionally".
https://www.dropbox.com/s/tbbcjfha6hvemf0/Satanic_FAQs.pdf?dl=1
(Refer to this for more insight about all things covered above ^)
Also remember along with these you'll need to work on your persona to be good with women. Women generally like cocky guys but with a funny vibe,not an insulting one. " cocky funny ". Break rapport. Don't agree with everything. Be someone, have views and ideas and stay strong to them. For example sentences that are backhanded compliments " You're so cute ....and small ". " That was the most adorable expression I've ever seen.... Like a little puppy. Aww." "Your hairstyle looks cool. But it would look better if you kept it up/down if its down/up." These are only examples to give you a vibe of what I'm talking about.
This is push pull. You give a compliment backhandedly like youre making fun of her in a cocky way. It can be used in any sentence and constructed in any situation. Use situational push pulls(what can be constructed in that particular situation as a push pull ? Think.) and use a little social intelligence while using them. Use this in all your interactions with women and you'll see instant success . Don't overtly use it every time though. Tone it down after you used it to get what you desire (getting her aroused or intrigued about you.)