I am caulking for the first time and can't seem to get it right and I'm not sure what I'm doing wrong (I have watched a LOT of caulking videos). I am re-doing the caulking in the vertical joint between the wall and the shower (on the outside of the shower). My application seems to always be slightly off centre and when I use the Caulking spreader on my Pro-caulking tool I seem to wipe the gel out of the joint rather than 'push' it in. I am sure there are MANY things I am doing wrong so some other guidance videos or suggestions would be appreciated. I'll go and clean up my last mess ready to have another go!