It’s great you have sought help now. It is possible to stop gambling. It’s easier to handle this with others, alone is a little difficult hence the reason we are here.
Can you look at gamblers anonymous? Great Support. You can ban from online sites, I’m not sure of stocks but maybe not have money accessible in online format. Groups here and one on one help too. Use all you can now while you have that desire to stop gambling. Keep posting your thoughts and feelings. If you fall, get back up, try and try, just don’t give up on giving up
P