Are these sentences grammatical and natural? ▪ Getting admitted into this college after successfully leaving out from one of the strictest schools like Gregory was like a bird that got freedom from its cage. It was a dream college where you can do anything you want like not attending everyday class, playing traunt, not taking any exam etc though it's not good for a student. But the regret is this heaven-like enjoyment didn't last more than two years because we had to leave our sits for juniors. Sometimes I think if I could add extra one year with that two years, I would get so many memories and be more nostalgic. Why beautiful moments fly so fast?