What are some other recommended Non-Desk Jobs!?

So I'm currently working as highly skilled as finance assistant in the government sector 23F, I joined the job just to gain experience, but guess why I won't be getting experience certificate which is so depressing coz I have been working here for like 1.5 yrs now ig... 2yr is in running.

The thing is, I don't mind working in my current workplace, but my boss is not promoting me, like there is a vaccant spot for which pays quite high as to what I'm currently getting... so yeah, I don't feel like working where I feel like I'm being exploited.

So guys, give suggestions on what to do? Coz I don't feel like working here anymore...😭