First of all i would recommend to make sure you know how Cram works. It helps when you want to memorise some grammar that is problematic (eg how to convert to te form or past tense). You can train there.
Then i would recommend to choose a path and follow it for a while. If you don’t use any textbook then just follow default path. Doing 3-5 grammar point per day at the start should not overwhelm you. But be sure that you are reading each sample sentence outloud, and if you don’t know any word in the sentence then add it to you anki list.
On top of that it is better if you do your review 2-3 times per day. New grammar point reappear after just a few hours so you can review them when they are still fresh in you mind. It may be harder to review brand new grammar point after 24h.
Once you are at the lvl you can start some basic reading then it seems better to add grammar point in order you will meet them in the text.
Good luck on you journey
If you straggle with anything just let us know in this forum. We will try to help (although I can be useful only on very basic stuff…)