Hello Ladies and Happy New Year

My hair is completely flat on top and it's been driving me nuts. Lately, I've been taking two clips and sort of clipping the sides of my hair up to make it look like my hair has more volume. (I'm a 3a btw) This works okay most of the time but I feel like there should be an easier way. I've tried drying my hair upside down and it does help but seems to deflate a few hours later. I've tried doing the clips that are shown in the Ouidad video when I defuse but I just can't get them to work. Manual dexterity is obviously not my forte so I think the solution is to have layers cut. Right now my hair is all one length.

Is this the right thing to do or will it turn out to be a disaster? Do any of you have layers? Is there something else I can try?

Thanks in advance for your help!