I think this was pure luck and I failed

[Wawis]

These two sections in yellow were specially complicated to me (I consider myself an experienced player) but I couldn't solve them without pure luck. I don't see the way to solve them rationally, so I want to ask if someone could help me. In the section bellow I was missing the 3 bombs in red, but I solve it before losing on top yellow rectangle. The other ss is how its solved