They wont let you work on the interesting projects because they can get much more value out of you doing other work. Write down everything you've accomplished,

They wont let you work on the interesting projects because they can get much more value out of you doing other work. Write down everything you've accomplished, including the stuff others have got credit for, and also the things you got blamed for, and word it like "was responsible for" and "learned". And be a bit "humble" about others stealing the credit, instead of "I did not get the credit I deserve", say "It was Joes idea, I just wrote the prototype, evaluated the market, launched the MVP, talked to customers, iterated on and improved the product, helped it grow to 2 million recurring monthly revenue, and helped it expand into five continents, and I trained the staff that is now working on it. But all credit goes to Joe for coming up with the idea and inspiring me to work hard, and the new staff for doing such a good job"... Make sure everyone know what you can do. Then find another job. People will talk, and they will say - yeh he did all those things, wow. The only way to make everyone around you change is to change to another company, with a new picture of what you can accomplish.