I'm finding myself more and more jealous of happy people
Why are you jealous of happy people?
I just feel so bad all the time.
I feel your pain, but jealousy of others good fortune will create more misery for you. Be happy for others and happiness will come to you.
I don't think so.
Feeling jealous will just put you in a vicious cycle of unhappiness. A lot of happy people have tough things happen to them, but they look on the good side. Focus on the good parts of your life, and try to do things that you enjoy.