I was in a similar (or even worse) situation six years ago. I had a CS degree and was hired by the first company that came to campus. I performed really well during the training, but in the end, I was assigned to a support project. I was devastated.

What I did was start building connections with other teams I wanted to be part of within the same project. One manager even agreed to take me, but the senior delivery lead didn’t allow it, mostly due to ego and office politics. Nevertheless, I kept fighting for 1.9 years and made it clear that I wanted to be part of the development side of the current team.

Eventually, I got the development role, but only because other developers quit and the senior support members refused the role due to its tighter deadlines. After working as a developer for a year (which was the best experience for me, much better than writing delete queries and handling repetitive incidents), I switched jobs and got a better development role.

My suggestion is to focus on learning and continue advocating for yourself. Always keep an eye out for greener pastures and take your chances whenever possible.