All these job applications

I have some many circulating job applications, one in Germany, another one I am applying for is also in Germany, and one here. I am also grippling with my shitty job that is slowly killing me. I really feel that I need to hang in my letter of resignation. But I am scared not to have an income. Now my income is very large, and will remain so until September. So the plan is to stay there until September if I can stay there or find another job locally that would keep me here until end of the year.