I’m 21 with bowel cancer symptoms and I’m too scared to phone GP

I’ll start off by saying I’ve suffered with chronic constipation my whole life and honestly been wiping blood for a few years too, what’s worried me this past month is the frequency of blood after a particularly hard stool passed. My stomach has been hard and bloated all month and recently I saw a small bit of blood in my stool. Overall the blood has been bright red but with the added severe bloating and fatigue (could just be because I’m a full time student and working although I’m not sure) I’ve done all the right things like increasing fiber, excersize and water intake but my stools still seem to be hard as a rock and causing bleeding. It’s also a bit of a harder situation for me as my GP is in a different city that I’m living in for uni at the moment so even going back home just to make an appointment will take a lot of effort up, and with how young I am the likelyhood of being sent away being told I have IBS and not taken seriously is unfortunately high and because of my living situation I do not have the time to be going back and forth. Does my symptoms line up with bowel cancer? Should I get an immediate appointment? Should I be concerned?