Satan, leave him alone and never return to his life!
Heavenly Father, please touch that person. I know that only You can change the outcome of this. Please touch that person with your loving hands. Fill that person with holy spirit. Do not let satan to control him. I ask that You send armored angels to him right now. Lift him or her out from negativeness. Talk to him or her. I ask this to be done in Jesus name. Jesus, You are our Lord and savior. Please save that person from darkness. Amen.
To OP: suicide is what satan wants you to do, do no do that. Trust all you worries and anxieties to God, He hears, cares and loves you.