Of course that a coach will help you to climb faster. He will help you to identify your mistakes and fix them faster is his job.
Your english is just fine don't worry. I follow your blog in the Spanish community just for you to know 
If you like you can post your stats here or on your blog and we can help you to find some leaks in your game. But you have to post some more advanced stats and by position.
So if you like post this stats : Vpip, PFR, RFI, 3bet&Fold to 3bet, 4bet range&Fold to 4bet, ColdCall, Cbet flop&turn& river ,Fold to cbet&turn&river, Raise vs Flop Cbet, WTSD, WWSF, WSD, River call efficiency.
We can start with this stats to see if you make some mistakes that you can fix.
So choose a limit for example for NL10 zoom because there you have the most played hands and post those stats as i said like in the next photo :

