Trust in God, and you will be back with her one day- and this time there will be no sin and no death and you will live forever together with each other and your daughter with God Himself being present among the people.
This is what the Bible teaches and I believe every word of it to be absolutely true! You can't die now, you have a very serious job to do: To raise your child with all the love in the world and to make sure when she's older she has absolutely no doubts about how much her mum loved her. Serve God for the rest of your life, stay away from sin (so you don't risk missing out on the Kingdom!) and await that sweet moment when you finally enter His kingdom. Don't let yourself consider suicide- it would mean risking your place in eternity and it would mean your daughter would lose the only one she has left. God bless you and your daughter.