Help

Sorry for my bad English but-
I would really like some help with some personal issues? I don't have alot of friends and I feel like this is in a way my safe place since no one really knows me here and I feel free from judgments.
Basically I was away for summer job in another country as an intership and stayed in another country for a whole month, aka four weeks(the country I live in we could call A and the country I visited we call B). I was in Country B with two of my friends and we lived in an hottel-apartment there.

And during the four weeks I have done alot of stuff that I could only dream of when i'm here in A. I felt so free in country B with my friends and never felt as happy as I did when I was inB since i always had stuff to do and could hang out with people without a curfew. I have very strict parents so I always felt like i was in a way held back to do alot of teenage things hence why I was so happy when I was in Country B since I could decicded over myself and actually think for myself.
Now the four weeks has gone and I'm back home and it's been four days since I left COuntry B and I feel so hollow and empty. I legitimately cried the first day I stepped into my own room when I got back, and cried when I was unpacking stuff and this is the fourth day since i'm back and the feeling of hollowness and emptyness still hasn't left me ? My friend and I thought of going back next summer and live there since she also felt similar
Is this in anyway normal or has someone gone trough the same stuff?

Allso.. I feel for a boy the second week I was there and pretty much lost my v-card to him, I do not regret losing my v-card to him and what we did but i cannot help but really really like him and I would like some tips of how to get over someone that you kinda had a relationship with that just happened to not be a romantic one.
Thank you if you're reading this since this is quite alot..