Survival

How does anyone survive this!!  I work all day, come home and do manual labor for 1-2 hours. Exhausted.. Still need to keep housework, bills, insurance and everything going. Fall in bed exhausted to do it all over again.  Is it worth it without my baby?? I miss him so bad and why should I continue on...this is so hard mentally and physically!!!  I have break downs every day and the burden on my chest has not gone away.  I can't imagine living the rest of my life like this....is there a better tomorrow out there somewhere?