Is it normal to have suicidal thoughts because you have tried to get yourself out of a situation that just seems impossible to quit so your only exit strategy is death?
Its normal to have suicidal thoughts. Especially if the first thing you do when you face a challenge is look for ways to quit. Its okay because we all deal with challenges differently. Some of us freeze, some flee and some face it. Suicide is a way to escape your problems and its not a solution. I think you need to develop ways to deal with challenges and cultivate resilience. The only way to do that is to expose yourself to that challenge and to persevere through it. Sometimes the circumstances don't change so accepting things as they are and giving thanks for what's going right would be a great attitude to adopt.
Also consider therapy you need to have someone to walk you through what you've been going through you don't have to go through everything alone.