Do the best you can for as long as you can with your life's allotment of materials, tools, and talents. The best you can do won't be the best, but your best, the personal best, unique to you, unrepeatable, and incommunicable to any other. Your uniqueness distinguishes your best from the bests of all the rest. Tread the path of self-individuation and become the unique individual only you can become — or fail to become out of slackery and inanition.
Look up to your superiors in the hierarchies of achievement and endowment. You are not their equal and you never, or only rarely, will be. If you can move up a rung or two, do so. Emulate where that is possible. But don't confuse emulation with imitation: the former includes but is more than the latter. Look up, but without envy. Their lot and their allotment is not yours. They will be held to a higher standard, and judged the more harshly the more they have buried their talents. Their boons are burdens, their blessings bonds. And so are yours to a lesser measure. Much will be demanded from those to whom much has been given. Your task is yours alone: to work the materials of your allotment with your tools and talents in your time and place the best you can for as long as you can.
If comparison breeds envy, drop comparison. To feel diminished by another's success or well-being either is, or is the near occasion of, a deadly sin. Be your incomparable self. There is and can be only one of you just as there is and can be only one One by which all beings are beings.
If admiration of the other sires denigration of self, drop admiration.
The strenuous life is best by test. We are here to battle the hebetude of the flesh and the sluggishness of the mind.