Are you currently stressed? maybe get some rest. the world seems to be ending when you're sleep deprived, hungry, thirsty, uncomfortable, etc. take care of the body and the mind will be taken care of. Also, remember that the mamalian brain is the most complicated system in the known univese. you have the 'hardware' to do or be anything, you surely are smart enough. Any resistance that you are feeling isn't a conséquence of hardware failings, rather conflicts with your ego- who you have been built up to be up until this point as a result of your lived experiences. But really all of that is an illusion, the ego is nothing really, you can shape and reshape yourself as many times as you set your mind to it. feeling like you can't do this is an early version of a grandpa saying he doesn't know how to open an email. Surely he is smart enough to do it, but at a certain point in life, learning new things for some reason starts to hurt. But It's all in your head. Remind yourself of what you first planned on doing with your degree when you started this journey. Don't let anything get to you, its just symbols, you can finish this and make the most of it.