Flying Jitters

So, I am going to Texas soon to see my family. I have been flying since I was 12. I have never been nervous about it all of the sudden I am. I am afraid of not being able to do it and embarrassed about having to have help. I thought about just doing it myself but that scares me. I fall at home all the time...falling with my son at the airport would be scary. I am trying to focus on packing but i'm worried my carry on items will not be enough. I have four, two for me and two for my son but I only have three bags so I was trying to get another bag. I found a few super cheap but then I noticed a few clerical errors so my my bank was shy...aside from this my printer stopped working and my son uses it for school. I feel like I am drowning in debt every time I get somewhere I end up back at square one....whatever. My son seems happy I have picture from his summer camp he is having a blast and when I get to go on this trip he will have even more fun I'm sure...