homosexual

Assalam o Alaikum!I have committed some grave and bad sins in the past and have told about them to some members of my family. I have committed homosexual acts to the extreme about 5 years ago with 4 different males for which I am very shameful and remorseful. I have also committed SODOMY. Alhamdullilah I am not the same person anymore and look to my past mistakes and feel like crying over them. I am now 22 years old and at the time when I committed those sins I wasn?t aware of the punishment for them in this world and the Hereafter. I was ignorant at that time and committed Homosexual acts and SODOMY because of bad influence and company. Thanks to Allah I haven?t got the same company. I now want to repent for those sins nearly 5 years after committing them and want to know the way and procedure for this repentance. I am very worried that I will be punished very badly and harshly for them in this world and in the Hereafter. Nowadays I feel very guilty and regretful for committing those sins. I also feel very sad and depressed and couldn?t sleep at nights. I want to be sure that whether those sins will be erased completely and whether I will have a clean sheet (i.e. whether I will be like the person who has never committed these Homosexual acts and SODOMY in his entire life) after my true and sincere repentance? Also I have heard somewhere that Allah has promised that He will give a gift of 1,25000 Hoors in the Jannah to the person who has never committed Zina in this life. I want to know whether I can qualify for this gift and whether I can be like a person who has never committed Zina after my sincere repentance? Please help me and answer my whole question.Jazzak Allah!