I Started Experiencing Rectal Bleeding Today And I Don't Know If I Should Be Concerned

So I'm a 23M and today when I used the restroom, I felt a burning sensation in my rectal region and got light headed. This alone was a bit concerning but when I wiped, the toilet paper was red with blood and there was blood in the toilet as well. My first thought to the cause is that yesterday when I was wiping, some fecal matter was stuck in the hairs of my rectal region and I end up pulling some hairs out rather painfully. I'm not saying this to be in any way vulgar but simply to convey what happened. It is something I've done in the past without any bleeding but it is the first thought i had at the potential cause. I am aware that rectal bleeding can be a sign of more serious health conditions and I haven't ruled that out but I am fairly confident about it being due to injury. My question is if it is an injury, how should I go about treating it? Also, at what point should I absolutely go to the doctor's? I'm hoping to avoid a doctor's visit if possible because I really can't afford that right now.