Selling up and relocating to another city for education?

Live in a flat and have a mortgage. Only 23 but thinking nows the best time to do something with my life!

I live in a small town near Birmingham but would like to move to Leeds or Sheffield. To do this I'd need to sell my flat. Is it possible and affordable to move there, get some sort of house/flat share (best option) while either doing college course or apprenticeship or am I making it out easier than it sounds?

I'd have no family or friends there so be completely on my own… Anyone done this before or have any advice? Cheers
Added (1). *While doing a bit of part-time work***

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