From Teachable:  

Tip of the week 💡  How many mental tabs do you have open right now? If you’re feeling a bit overwhelmed with your task list, try re-evaluating your internal browser. Focus is one of the most powerful tools in your productivity arsenal, but focusing on multiple things at once can often derail work more than help it. Challenge yourself to place all your focus on one particular task or project today. You just may find it’s easier to “exit out” of your mental tabs if you tackle one thing at a time.