why i haven't come out as a 20 year old guy

I'm 20 years old and I've never told anyone I'm attracted to guys and I've never done anything romantic with either sex. My life has made it really hard to figure out my sexual preference. I was really late to puberty maybe around 16 and I've always looked 2-3 years younger than I am. Even now I look 17. So although I can confidently say I've always been really good looking, no one my age has thought I'm attractive that I know of and I found myself too mature for anyone younger. Around the same time I hit puberty I got sick with chronic fatigue which I'm still going through today. I'm too sick to go to school, work or socialise. The very few occasions I do socialise I'm doing everything I can not to feel anything because I'm so sick. Which means I'm also not feeling anything sexual.I do watch porn (90% gay) but it's more because of a lack of sexual stimulants in my life. I'm a romantic and I rarely enjoy the vulgar aspects and emotional distance in pornography. I mostly hate straight porn because I find girls acting dominated and unrealistically aroused a turn off. or maybe I don't like it because I'm full on gay. I still don't know.Another major reason I'm still confused is the effect my chronic fatigue has on my brain. When I'm sick I'm not myself. I have a naturally energetic and bubbly personality but when I'm sick I'm a boring, weird shadow of myself. And all my cognitive functions are severely impaired. When I was healthy I was sexually attracted to several guys I knew but at the same time I had crushes on girls. With guys it was sexually stimulating to think about them but with girls it was more about kissing, cuddling, closeness with a little sexual attraction. But it's been so long since I've been attracted to anyone in real life I've forgotten how I feel.I have a really great family and some close friends and I know they would completely accept me (they might even suspect i'm gay anyway) but I haven't told them because I'm still confused and I don't want to tell them until I'm confident myself in my own identity. Plus it has almost zero effect on my life right now since I'm the furthest thing possible from dating and I'm not depressed about it. I've always said to myself "don't stress, just be open minded and honest and I'll figure it out". But it's getting harder not knowing when or if I'll finally be healthy. And if i'm not healthy, I'm not myself enough or smart enough to answer these questions and act on the answers. Just wanted to finally write down my thoughts and story. If you have any advice, questions or anything you want to say please comment.