Unusual growth under tongue

I am Jude Serrao aged 19, honestly speaking I used to smoke alot of cigarettes a day daily and drink alot of alcohol for like 1 and a half year . However I'm clean now but honestly speaking there is unusual redish growth under my tongue middle line and at left side 2 redish ulcer like things and on the right side as well it's lasted for more than 6 months. I did check up with 2 local docs and an ent surgeon of 20 years experience while he told me it's 100 percent not cancer and gave me a cream though it didn't work then I went to an oncologist of 20 years of experience and he likely told me to visit a dentist, the real reason I'm extremely concerned is because it's lasted for more than 6 months almost a year now plus the left side 2 redish ulcers like things have become slightly big though there are still small but still I'm extremely concerned please is there any hope it's not oral cancer 😭😭😭😭😭