When will this feeling of being trapped ever leave me?

All feelings, even this one, come and go. Happiness and contentment is not an end goal. You need the low to appreciate the high, keep your head up. Occupy yourself with things you enjoy and don't be afraid to reach out for help. You deserve to get yourself the best care possible.

when you start focusing on what makes you happy and then working towards that goal. forget about your anxiety for once

By understanding the root of feeling, accepting it and than replacing the trapped feeling by some positive action in your life. Good positive actions in life are helping others, doing job you love, pick some creative hobby etc.

When you love your life so completely, you notice the little moments everyday, and smile when you do see them.

However you're feeling is ok to feel. Thoughts of feeling trapped are consuming. It can feel like you're drowning, every single day. I would suggest to find distractions if possible. Your thoughts will not win.

It will leave you I don’t know when but I know it will and you won’t feel trapped any more.

When did it begin? Can you describe the feeling? How do you behave when the feeling intensifies and does it ever almost leave you? Usually when people say that they feel stuck or trapped it is because we are either indecisive or generally don't know what we want to do or become. The feeling usually leaves us when we find what fulfills us and what we want to be(come) and it can be as simple as "I want to find a way to make at least one person smile every other day/week"

I'm absolutely sure it will leave you. It will although take a lot of courage and work from you side to overcome this difficult time in your life. It can help to chat with someone on this site or a person you trust.

It may lift once you understand what it is that making you feel trapped and freeing yourself. Feeling trapped doesn't mean you are trapped

If you allow yourself to be trapped and do not tell anyone or open up then you trap yourself inside you. But if you open up and let someone in to help you then you will feel free and open so when you allow yourself to open up then you won't feel trapped anymore.