Magic can only help so much then comes you.
You can use a good luck spell to help bring good luck to you, but in all reality this sounds like something you need to handle yourself and not turn to magic for.
I will share with you a candle charm I have used in the past that has brought me good luck.
You need a black (black, not a white candle with a black outer layer) and white candle.
Light the black candle first and chant while putting forth all your energy: "From my past where misfortune has lain, cast away the energies that be."
While the black candle remains lit, light the white candle and chant while putting forth all your energy, "From my past to my present, bring to me might of good, cast out that of bad."
Keep chanting upon each one the chant for each color until you feel the energy within you rupture into this intent.
When you've got to that stage, put some wax from both candles into something small you can carry with you as a good luck charm. This can be a metal bottle cap or even a regular plastic one.
Good luck to you.