You can do them, yes, but you should give yourself some time first to improve spiritually. Give yourself a few months before you start with ritual schedules.
You can if you want, of course, but it's better to at least do the 40 day Meditation Program firstly. Well, the 180 day Program much Powerful. In this way you can increase the Psychic Sensitivity and the Activity of the Minor and Major Chakras, so that the effectiveness of your Rituals will increase. This is important.
You're going to have to do it anyway, so go for it now and then it will be easier to master Rituals and Witchcraft.
There are also mental benefits to them and this can act as practice.
This is also not an on/off switch, you will still get a little bit of the effects.
Do focus on your advancement, yes, but don't be afraid to try the Rituals. At worst, not much happens.
And still, don't overdo them. They affect the Soul in ways you might not feel.
No matter your level, those rituals will be important to perform at least occasionally even if you do not fully participate in the schedules. They will benefit your advancement in unseen ways regardless of whether you are new.