if i’ve attempted suicide, does that make me a sinner?

Pain doesn't just show up in our life for no reason. It's a sign from God that something needs to change in your life, so that you can be happy, and Jesus is the one that can make that change for you. When one accepts Jesus as their Savior, He immediately sends His Holy Spirit to transform your life to a brand new life in Jesus.... just as if you had never sinned in your life, because when he forgives you of your sins, he also forgets them and that's when you start your brand new life in Christ, as his child forever. It is nothing short of a miracle.