Is it possible to walk on in the D2 level at 21?

I’m currently 20 years old and I have a strong itch to play football. I played high school football my freshman year, haven’t played since. (defensive end/ O- tackle) By the way, I didn’t even finished the year thanks to Covid. I’m going to attend West Georgia next year for auto tech. I want to walk-on the football team next year, it seems very unrealistic but I don’t care. I know I’m not making the league, I just want the experience of playing college football. I’m 6’4, 280 pounds, goal is get to 230 next year with a lot of strength training and conditioning. The positions I’m aiming for is defensive end/tackle. Is this too much or go for it?