Is it normal that having a new home has drained all life out of me?

A few months ago my dad encouraged me to buy an apartment in my homeland as an attempt to stop me from moving in another country with my foreign bf(we have been planning it for a long time). He also gave money and initially said he was making an investment but after i signed the contract confessed he was trying to stop me from looking a job abroad. A day before i signed the contract my bf confessed he would probably have to move to another country to work within a few months time, around the time the apartment building finished, but he was supportive about buying. I said nothing to no one as it was a very bad moment. I spent the last 3 months supervising the construction while working at the same time and realized what a draining and stressful thing building is. Throughout this i got zero help from my family or bf(they were all busy) and had to take care everything by myself. Now we are about to move in (him not for long) and i am so physically, mentally and psychologically ILL and feel so BITTER and fed up with everything and everyone.Is it normal that a day before i move into my own home i cannot stop crying from sadness and wish that i could just dissapear and not hear from anyone ever again??