总觉得这句英语有问题，但又不知道问题在哪，怎么更正，求高手支招

I loved physics when I was a child. I spent so much time on it at colleger that my major was extremely ignored.

from去掉就可以咯~~~

i 've been loving physics since i was a child .And i spent most of my time on it during college years ,which even reduced my devotion to my major

我从小就喜欢物理，大学期间我用了大部分时间在物理上，甚至分散了学习专业的精力。

虽然你是想说从小就喜欢物理，但是英语里不能用from来体现这里的“从”，直接用was就好了。
I loved physics when I was a child， and I spent most of my time on it during college, even disturbed my major.

I loved physics since I was a child and I spent most of my time on it during college, even it disturbed my major.

最后一句少主语