When you don't do akusla you do kusala? When you don't do akusla actions you do kusala actions? 

And I'm aware of the middle way  -  harming yourself is not. 

And another question (you can answer whatever you like or both) 

When you don't do stuff for fun  do you do good things? ....   of course with 2 important exceptions:   you have right view and you don't avoid fun stuff (meaning not to do on purpose stuff cause they are fun but you can do stuff that are fun if it serves you) 

And my main question is:  if I avoid doing bad stuff (akusala)  will I do only good stuff (kusala) or neutral ones?  

Because I'm pondering a way to advance in the path after trying many many ways as to just focus on avoiding doing bad  and cause I have right view more or less  I will be pushed to do good.  

Also many things for fun are akusala (bad)  so it seems avoiding them I am pushed to do good.  

(And yes I know there are "levels" and you can look at actions in general or moment by moment - and I ask this on each level - also in the big picture of actions and also moment by moment)   

Sorry if it's a mess of a question - but I hope the smart people here can give their opinion on this line of thought nonetheless  - you don't have to answer the question directly.
I think generally speaking you are on the right track. Your question seems very clear to me and your logic is valid.

Don't do akusala, on all levels from coarse - to very subtle, exactly this was my path, this can be your path. You don't need to worry about kusala, as long as you put serious effort in not doing akusala, you will advance.

Now, "serious effort" is very serious. There is akusala hiding inside kusala, and there is kusala hiding inside akusala. So you should be very bold and very brave. I see you are making progress since you joined.