c-22 processed as B&W - can do more?

I just processed some old c-22 film I got with an ebay camera purchase. The boxes it came in were from the 70s. I developed it for 4+4 minutes in Diafine and actually got quite a lot of images from it. I've seen someone on here mention you can then develop as colour, as room temperature c-41 process. Has anyone ever done this before? If I continue with a colour process would I lose what I have? I'm in two minds about trying some blix/bleach on it or trying to process it properly when i've never done c-41 process before.

Really sloppy job here but I had to take a picture of the neg hanging up. don't hurt me for making it look more like it would if I printed it

Best:


Worst:


in terms of the colour cast getting in the way of printing. But not bad. Those are actual prints this time. With enough filter fiddling I can get slightly more decent looking stuff too.

Now I'm not sure if I want to try colour processing it at all and risk losing this all