Can I get my crush interested in me again?

I had this guy whom i liked , he was interested in me we had some cute moments and a lot of eye contact, but i was at a low point of life , i didn't really take care of myself as i should , and i had an obvious 'glow down' as i gained weight.
He stop giving me attention since.
I really wished for things to devolop but it 's out of my hand , i won't meet this person till the next scholar year , and i m asking if i can get him to like me again if you know.. i take care of my apperance more , or i should just drop it and move on
Can I get my crush interested in me again?
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