Follow these below rules no matter what or you may regret it later in life:
Do not share these things with a friend. It may be used against you. Never do this.
You do need someone to share these things to lighten the burden. A family member is the best option. Your mom or bua and all, if you are close to them.
Suicide attempts will further worsen your condition. Don't try them.
A person online can just sympathesize with you and he will forget it the next day. It will only help for few hours then you will be back to the same condition.
You need a physical person to talk to. You can go to a therapist. Some govt hospitals give free therapy and they can be really good. Somebody here can maybe help on finding a good one near your area.