How to have confidence when putting in contacts for the first time?

So, later today, I'm going to try and put contacts in for the first time. I've had glasses all my life and I don't want them anymore, but I'm super nervous about putting contacts in my eye. How can I have confidence in myself? Can anyone give me tips on putting them in? The girl's going to teach me, but I've seen some comments to videos and a lot of people said they weren't able to put them in. I'm just scared. I want to be able to wear sunglasses for the first time. I want to wear funky, lens less glasses just to say that I can. Please give me some tips and advice on having confidence that I can do this.

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