Thank you Mudkip, I've posted it in the journal section (I was not aware about the section).
Surely I will dedicate tons of time to study and share hands!!

GL at the tables

Thank you for the tips. I'm aware of the heavy rake at the micros, unfortunately this is the only way I have to climb the stakes.
I will surely dedicate most of the time to implement what I'll learn every day of my poker journey, my first goal is to become better and better at the game and the bankroll increase will be a consequence.

PS: I posted the same thread on the Journal Section, so feel free to follow this there :)

Allright, first of all it's better to post these reviews in separate threads, just choose "new hand history" when making a thread and it will much easier to read for everyone.

Yeah, you should not 3bet 89s from the btn, start at T9s, maybe with deep stacks its ok? You can call it sometimes tho, I like a btn calling range.
Flop its tricky, I do think your play is ok against people that will overbluff flushdraws and straight draws but don't think 5nl "regs" will do it. Can't really comment too much on it because I have no idea about what your 3bet range is, but purely by thinking about 5nl "regs" more common leaks, not x/r enough is one of them so he is more weighted towards value than he should be and flatting becomes encouraged.

From a more balanced perspective, think you want to check everything on that flop, your range gets destroyed on that flop.

Its simply because we try to play specific boards in relation to our range (not our specific hand). You have been lucky to hit top2 here, but most of your range (like AK/KK....) wont be too happy with this flop and dont want to put a decent amount of money in as Villain could easily have outflopped overpairs or simply AK.
So if a huge chunk of our range wants to keep the pot small, we need to balance those checks with strong hands. To find balance like this is kind of complicated and so a heuristic CAN BE to simply check everything here.

Something that I think is worth noting is that not all flopped straight boards are created equal, on the ones like this with 2 gaps our overpairs are significantly stronger than say 987ss. There's a few reasons for this, one is less immediate nuttish combos, another is that on the 2 gap board there are no pair + open ender combos possible and less pair + gutshot combos and finally it's significantly less likely that we face a 4 straight turn so the incentive to put money in on the flop with a view towards betting the turn as well is in fact higher. Also when we consider preflop where it's a 2.8bb open and a 9bb 3B we're actually putting a lot of pressure on suited connector hands which should probably be folding here OOP given the price so with that in mind this board is actually less threatening than it might initially seem.

Also the x back range heuristic is something that I think I might have suggested before but the more I look at it the less I like this as a solution. The reason for this is what is supposed to happen when we bet at too high a freq is that our opponents should find increased aggression vs our x range with marginal equity holdings, I'm fairly certain that only the top regs at 500z and higher are managing this, below these stakes I think the notion of doing something like just going nuts with some overcards with no draw other than to top pair or they might block a flush if it completes on the river is not something that they have in their arsenal to punish your x range being insufficiently protected here so you're only really going to feel pressure from strong draws and inducing aggression from hands like 2 overs and a flushdraw isn't exactly a massive win. You do open yourself up to exploitation if you overdo the value betting on a flop like this where I agree some x back with overpairs is fine but realistically when you x here are you seeing people put in massive bets with thin value and very marginal equity holdings regularly?

I think the important takeaway when you see something like this where someone should be protecting their x range a lot more than they likely are is not "I'm going to stop value betting because pio told me to" and is rather "How do I punish people who are incapable of checking back an overpair in spots like this?" and I think you can actually shoot up in stakes by finding spots like this where the pool is just going to hand you the pot if you turn up aggression and then really pushing the boundary of what you consider to be a reasonable bluffing candidate.