A proper base would mean building a fair bit of muscle and reaching your genetic limit. If you start gear without a solid base you will blow up when you start and you will lose it all in PCT and beyond.
Get 10 solid years of training in. By that time your body/brain will be done developing and if you keep up your training you should be in a great place to start using drugs.
If you feel your not making the progress you want to see then start a training log an tag me so we can review what your doing and what can be improved. Also pics of current physique are very helpful.
This is my current log if you wanna check it out You can use it as a template if you like.