i always get too attached and its happening again

i [m19] have been speaking to this guy for abit now and im just so attached. it happens all the time i genuinely dont know how to stop it or slow it down its so frustrating.

i was having the absolute worst morning, rotting in my bed feeling the worst because he didnt message me last night. then he messages me and my day is suddenly started, im fully energised ready to get out of bed and do shit just cuz he dictates my mood.

how do i get past this? its proving to be a huge problem everytime i speak to someone