Having a procedure done

Jumping the gun here, but I have pain in my shoulder and a massage therapist/ultrasound tech informed me that it may be a lipoma or an abscess. She said to make an appointment ASAP due to the size. It is about the size of my palm and noticeable when I look in the mirror. It has smooth borders too. Apparently I've had it over a year according to my boyfriend (he thought it was a muscle knot).

Basically, I am debating about whether I'd even want to get it removed so close to graduation. I don't want it to mess up me being able to lift anything, but then I get bad shoulder pain after 12 hours.

Have you ever delayed any procedure? Most people who do delay things seem to regret it like amputating a foot, carpal tunnel surgery, and so on. I think whatever it is would be a good thing to go whether it's popping an abscess or cutting out fat tissue. But I just don't know if it is worth doing any time soon with school.

Not asking about medical advice. Just if you've delayed a procedure and any regrets in doing so.

This was typed on my phone. Sorry if I missed any weird auto corrects.