About the sin of suicide

I was reflecting about it and scared to commit as christian,but the Bible says there's only ONE unforgivable sin. I know,after you commit you can't repent of the sin,but there's the point that makes us afraid,it's the fact that we need to repent after the sin,but did you know you can repent BEFORE? So.. :D ⚠️This is only in evangelical interpretation⚠️