FOMO is the "fear of missing out". You can fell it when you have a lot of options to do or to go and etc, and they are all exciting. What could be better, yeah? But no. Amount of options can lead you to another thing - FOBO (fear of better option).

"If I make a choice, I refuse other opportunities!" - and then you are overwhelmed and do nothing.

So, what should you do? Select criteria which is important for you, research options and choose one of them as main, then compare it with others. Yes, your decision might be not the best in the best but actually you'll never know it. If you have a treasure to make a choice, appreciate it.