How do you get over someone ??

Like this

Explanation: You can never truly get over someone, but you can do a lot of things like: Talk it out, try to fix what happened, attempt to move on, if you did something wrong apologize because apologinzing goes farther than most people think. Whatever you do make sure you know it's 100% what you wanna do. Do I want to get over them, or do I want to try to work things out? Love you.

alchemy hadn't scientific methods of study, appeal to mysticism and fantasy, the knowledge of chemistry and physics were modest at that time.

alchemy was - but as new rules were discovered it either changed into chemistry or it became "unscientific".