The good news is that at any level, the maximum you do is sufficient. You are not demanded to do something beyond yourself. Just do the maximum that is within your capacity.
Good news is, you don’t have to exceed your capacity. The challenge is, you have to do the maximum that is possible within your capacity.
Once you do the maximum within your capacity, you get results; and once you taste the results, your willingness to impose more discipline upon yourself increases. Now you know that a formula has opened up: “The more I exert myself, the better the results will be.” Now you have been convinced with a proof. What is the proof? The results. The results have arrived.