I think I can pass as a compulsive gambler based on your description, After some regrets and realization, I got decided to reduce my activity and start changing myself. I've been a gambling addict for years and wasting countless money on my addictiveness. Friends and foes tried to change me before but I can't stop being the same, It's hard to get rid of being a compulsive gambler but it is possible. Try slowing down the activities and putting a limitation on yourself. It's almost a year since I start to change and it brings a significant change to my life. I also didn't seek professional help for my addiction. Just some deep realization I was able to change.
Changing is not impossible.
Changing is impossible that is "
I am possible" but it requires a lot of time and dedication, just like you told your story of bringing a change in yourself took more than a year. Most gamblers , especially those who are in their 20s or 30s, may not be strong enough to control their addictions and habits. You need to be mature and strong in mind to be able to change yourself.