#singing question

[this-is-where-i-hide-my-bullshit]

How do I get my throat to stop audibly clicking when I sing??? I'm not swallowing it just does it and I don't know why.

I'm trying to teach myself how to sing and I don't have any former vocal training, I've tried Googleing it but haven't found anything.

This is a video for reference:

Also, is my voice monotone? Because it feels monotone and idk what to do about that.

[f-gems]

Lately my nose has started to hurt a little when I sing, which has never happened before So, if you guys could check this out and help me out, that would be extremely helpful.  There's more details on my issue in the link.

Really guys, I'm scared.  I'm probs overreacting but singing means so much to me.  Please, help me out if you can.