Well, my advice goes thus;

See Steemit as a platform to learn because ultimately, that's what we need in life "to continue learning" while growing on the platform, do not be greedy about the earnings because that might affect the quality of your posts and your growth in general. Take it as serious as you would take your job or an academic project.
Finally, do not hesitate to give back to the community and outside the community. Invite other people to come and earn, use your earnings to support people in need and don't forget to be diligent in personal spendings.