If you feel God calling to you in some way, no matter what you have done or who you are, know that God loves you and wants you to know Him personally.
Jesus says, "Those the Father (God) has given me will come to me, and I will never reject them ... For my Father's will is that everyone who looks to the Son (Jesus) and believes in Him shall have eternal life" (see John 6:37, 40).
You may have been abandoned by friends and maybe even family but God is faithful and will never forsake you if you turn to Him.
Don't wait another day. Place you faith in Jesus and He will never disappoint.