When is it right to start learning strategy after tactics I have been furiously solving tactical puzzles for 6 weeks now and about three weeks ago I reactivated my account on chess.com.

Long story short I have seen my "rating" go from 1280 to 1590 during this time and for the first time ever I qualified for the second round, not in one but two tournaments on the site so I am definitely seeing improvement.

After asking for the computer analysis for the games that I have lost, I decided to also analyze the ones that I won so I got the last one, which I was feeling particularly good about it, and it turns out that the only reason I won is because my opponent did far worse blunders than I did. If he had been just a little bit stronger he would have crushed me.

I have followed the recommended variants and I just cannot understand why the position I ended up with is far worse than the one the computer recommends. I have zero understanding of positional play.

I feel that I still need A LOT of tactical practice, I still miss quite a few solutions from rather simple puzzles, but I am wondering if by not knowing strategy all this tactical knowledge might go to waste because of mistakes and blunders during the games.

So the questions would be:
- When is it a "right" time to start easing off on the tactical training to start balancing it with strategy/positional one?
- If I focus on these two, is there some kind of heuristic as to how to balance that training (20% - 80%, 30% - 70%, 50% - 50%)?
- As a bonus, if you could recommend some basic literature for someone who has absolutely zero understanding of positional play it would be appreciated.

Thanks.
Improving positional understanding is a longterm project. You do it by playing, by analysing, by going through well annotated master games and by working through books on the subject. But contrary to tactical exercises these things often don't have an immediate effect. Personally I also misapplied a lot of positional concepts that I had read about. Positional understanding will only help you if it is complete on some level. As soon as that happens there often is a sudden rise in strength. 

Given that successfully applying positional concept depends a lot on accurate calculation, the right time to get really serious about training positional understanding is probably when you start getting diminishing returns from your tactical training. It's unlikely that you are at that point yet. 

But if you have fun doing the things I mentioned at the beginning, there is no reason not to do them. Just remember that you will probably misapply ideas and not necessarily see immediate benefits. And try to not be too dogmatic about the things some authors tell you. The main thing is the discovery of amazing ideas and possibilities in chess.


Nimzowitsch: My System, a classic, it was definitely revelatory to me and also a lot of fun to read because of the evocative prose. (I don't know about the english translations though.)
The Yusupov-Series: Very systematic training of all aspects of the game. If you hit a wall in pure tactics training, the orange books might take you to the next level.
John Nunn's Move by Move: Just one example of many well commented game collections. This one literally explains every move, making it more suitable for relative beginners.