Hi Vito, Great to start with a video of you surfing; gives a lot to advise you on!
A few of us old hands will probably come on and offer help!
Your wave catching is a good start, but now the assessment begins, your stance is called a poo stance and absolutely hinders any connection of balance. and delivery of power to make a bottom. turn ( it is a very common stance for people at your stage going backhand)
You are poorly balanced to effect any change of direct if you look you see that your turns are lean turns but answer is to stand up straighter and drive through the soles of your feet with pressure on your back foot.
The criticism seems harsh but early days , try little improvements, at the moment your overhanging bum is a big hinderance to down the line surfing and direction changing.
Watch the good riders in your wave zone, absolutely none use the poo stance, watch and copy!
We want you to become a capable surfer, really

I've taken up troll hunting just for fun, instead of a rifle I'll just use a pun! 冲浪爷爷