Being promoted to manager is one of the most exciting and rewarding steps in your career. However, after all of the congratulatory messages die down, the harsh reality that there is not enough time in the day to take care of business sets in.

The most common mistake that new managers make is trying to do it all. They’re constantly juggling taking care of their own workload while making themselves available to others. While working 15-hour days may work in the beginning, new managers will quickly burn themselves out if they don’t get a better handle on time management.

Below are time management best practices that new managers can implement to prevent burnout:

1. Understand when to say “no.”

As a new manager that is eager to succeed on the job and make a good impression, it can be very tempting to accept any assignment that comes across the plate. However, it’s not always the manager’s best use of time to take on every assignment. If the task is not mission-critical for your team, you need to learn to say “no.”

2. Be selective with the meetings that you attend.

Most employees attribute meetings to being one of the biggest drainers of productivity in the workplace. It’s not always necessary to attend a meeting to arrive at a resolution. Before accepting a meeting invitation, ask yourself if the issue at hand can be resolved with an email. If it’s absolutely necessary to meet, use an agenda to keep the meeting on task.

3. Proactively audit your calendar.

It’s not unusual to set up re-occurring meetings on your calendar; however, over time, it may no longer be necessary to have that “check-in” meeting. Being a new manager usually means maintaining a full calendar. Proactively look for opportunities to free up space on your calendar to knock out work and make yourself more available to your direct reports.

4. Don’t let your email inbox manage your day.

The typical employee receives 121 emails each day, and managers usually receive even more. An overwhelming amount of emails can divert your level of productivity. Establish set times during the day to check your email to prevent your inbox from dictating your day.

5. Delegate objectives.

Instead of delegating tasks, delegate objectives to help your employees take ownership for their responsibilities.

Taking on the new role of manager can be exciting and challenging, but be sure to get a handle on how best to take on your new responsibilities to stop burnout in it’s tracks.