As someone who started high level management at 22, I can easily say from my own mistakes there are two really big mistakes that I see people making.
One is confusing effort with results. Just because we work hard doesn’t mean it is making an impact in the ways we need. You have to have measurables in place that are clearly defined and give a baseline of expectations. It’s the only way we can know we are on the correct things and making an impact.
Two is getting stuck in the weeds, or getting hyper focused on things that keep us from seeing the bigger picture. This is especially true for people who have come up through ranks. It is easier to get caught up in little details and forget that as an entrepreneur our role isn’t always to see to every single detail, but rather remembering to delegate and remain in a position of running your business rather than running say a register or calls. Delegate the items that can be done by others so you can focus on growing your business. No one but you will grow your business to your vision while you are sweeping the floors or answering the phones but in the same breath be humble and willing to work along side of those you lead.