As someone said, it's time to move on but take it easy. Try to reduce your "extra working hours", at least try to get enough free time and make sure weekends "are weekends". You need time for you.

Now it's time to start thinking "what would you like to do next" and invest some time in a daily basis looking for companies and positions that you will feel motivated to apply. That research and process may take some time.

Ah, don't get into the "Engineer -> Senior Engineer -> Manager" thinking, titles are not important, what really matters is what you do and how much you enjoy it. If you enjoy what you do, you will succeed.