just broke up :(

i just joined this group because i don’t have anyone else to talk to although this might not get attention im okay with that. i just need to let it all out. so keeping the exposition short, me and my girlfriend of two years just had a mutual breakup and im not sure if how im feeling is okay. we are keeping in touch but just as friends and i just feel like whenever we talk i want to say i love her because i still do. a lot of things remind me of her especially when im in my own room. i also blame myself a lot. when i look back i feel like i wasnt there enough but im not sure if its just me overthinking. our situations have caused it so we both withdraw from each other and we have come to the conclusion that its probably best to part ways. so i guess the questions i wanna ask are :

how long does it take to get better? 

will it get better?

is blaming myself healthy? 

what can i do to get better?