If you are using sticky tape I strongly recommend using Scotch magic tape.
I don’t usually go for a branded product, always look for cheaper alternatives but I find magic tape invaluable for sticking patterns together.
As Acorn says use a dispenser so you can do it one handed.
I try to use a small piece of tape to start with and I don’t press it down too firmly, then when I am happy that things are lined up ok I add longer lengths of tape and press down well.
It’s a bit faffy this way but gives you a good chance of getting things correct.