i get it. it shouldn't take so much energy to not feel awful. but each time you face this....you get stronger and better at beating it. lean on those around you who can be strong for you. I don't know if you are close with family or friends but whoever you are close with...let them in...whole heartedly. ....they are right, it will get better...so just hold on....and time will take care of the rest.
Goodluck