[phendrenad2]

> I have tried over the past 2 years to propose different solutions to hard problems and I just get blown off

This is the core of the problem, right? You want to work on interesting things, but you're being prohibited from it. Also it seems a bit like you're being disrespected by them if they're not taking your ideas seriously and dismissing them immediately. If you want to stay (which I think you should), you can wait until you're 40 years old and people start listening to you just because of your age, which might feel unfulfilling. Or you can hack on these ideas on your own time, release them as an open-source project, and try to get the company to use them if the project becomes popular.