If you have any doubts about wearing hijab, just put your trust in Allah SWT. Has Allah ever asked you to do something which is harmful for you? Has He ever asked you to abstain from something that was good for you?
Seriously, think about it. Have you ever done something for Allah SWT and then regretted it? Think about it. No, it’s impossible. Have you ever committed a sin and then regretted it? What does this tell you? Everything that Allah wants us to do is good for us, and will improve us and make us happier. Whenever we disobey Allah, we lose.

So my point is, the benefits of wearing hijab are obvious and amazing. However, all one really needs to know is that Allah orders it, and that should be enough to observe it. May Allah SWT make it a lot easier on everyone who struggles with this.

Allah SWT knows best