Feel you are mediocre?

People are mediocre in activities they do not like. You cannot master something you are not internally interested in. You probably walk in the wrong direction. If something is engaging your mind and you want to do it voluntary in your free time - this is the sign to look at.

But whatever path you choose, there is a way to unleash your internal barriers.
One option is to cultivate maniac attitude. For some time you can become intentional maniac. Surround yourself with things related to your subject. Decorate your room with them. Dig inside the subject details. Talk about them passionately, all the time. Turn your face away from distractions. With equal other conditions this mindset will give you advantage.