Voted for

• High expectations. It is normal to wait for the result, but it is not normal to wait for the result instantly.
• Fear of the future and resistance to change. On the one hand, you are eager to achieve your plans, on the other — you are afraid of possible changes.
• Fear of losing. You retreat when the fear of failure becomes stronger than the desire to cope.
• Working overload. If you work too much, you can burn out or get so tired that there will be neither the strength nor the desire to move forward.
• Other (please specify)

Maybe all this. We are all different and there are different reasons, but I vote for the fears in first line.