Work / Working as a PL-EN translator - good idea? Sworn translators in Poland. [27]

So, I've been working for about four years as a native English teacher in Wrocław, really enjoying it but I feel like a change. My Polish is not too bad so I was thinking about translations.

How easy is it for people to get into the PL-EN translation market?

Does any one have experience with this?

I did a few translations of articles for Wrocław economics uni, they were happy and I still get work from them every month but I can't seem to get more clients. I tried globtra and proz.com but it seems to be the same few companies wanting loads of references.

Any advice?