I get this question a lot from people who are starting out. I always say the same thing: Just do it! It's doesn't matter. Take Action!
Try to make it short and memorable. But the domain name is the last of your problems. And it should be the last thing that holds you back.
In the past, I’ve been guilty of thinking that all the good .com domains have been taken. But this is just not true. There are several fantastic sites where you can enter a keyword and choose from the hundreds of available .com domains that their engine comes up with. One of them is leandomainsearch.com
My main website is https://RobCubbon.com – it’s my first and last name. It has served me well, because it means that I can blog about lots of different things.
So just go for it – register that domain! We’re talking $10 a year. It’s not going to break the bank.