No one is going to value you more than you value yourself. Set a high personal hourly rate, and stick to it. Factor your time into every decision.
You should be too busy to ‘do coffee,’ while still keeping an uncluttered calendar.
A busy calendar and a busy mind will destroy your ability to do great things in this world. If you want to do great things – whether you’re a musician or entrepreneur or investor – you need free time and a free mind.