I'm flying by myself for the first time in a week and I'm quite nervous - 1

So i'm 17 I have flown a few times before 5 times (well 10 if you count there and back) the last time was over a year ago, this isn't the first time flying without my parents as I went on a school trip but this it's my first time going to the airport by myself checking in, going through security, getting my gate boarding etc I have flown from this airport 4 of the 5 times so i'll probably know my way when I get there but as of now I can't think of a what to do when I get there its dublin airport if anyone has been there I use to not care too much about flying but lately now that I have to do it all by myself I'm quite nervous but I go in and out about being kind of scared and then other times I'm kind of came about it, I don't usually have seats beside who I'm flying with and the flight is only around 2hr30 mins( the longest i've been on is just over 3 hours) so I'm not sure why I'm scared/nervous so can anyone help any tips of what to do how to calm myself/ stop overthinking it anything at all that will help thank you so much

How bad is flying basic economy on American Airlines?

How bad is flying basic economy on American Airlines? This is my first time flying and I just want to know the experience of flying basic economy vs main cabin. Really the only thing I see that's different is that you get to choose your seat with the main cabin.

I'm flying by myself for the first time in a week and I'm quite nervous

So i'm 17 I have flown a few times before 5 times (well 10 if you count there and back) the last time was over a year ago, this isn't the first time flying without my parents as I went on a school trip but this it's my first time going to the airport by myself checking in, going through security, getting my gate boarding etc I use to not care too much about flying but lately now that I have to do it all by myself I'm quite nervous but I go in and out about being kind of scared and then other times I'm kind of came about it, I don't usually have seats beside who I'm flying with and the flight is only around 2hr30 mins( the longest i've been on is just over 3 hours) so I'm not sure why I'm scared/nervous so can anyone help any tips of what to do how to calm myself/ stop overthinking it anything at all that will help thank you so much