Beginner guitar: tips for having trouble pressing down on the strings?

My fingers keep touching the wrong string when trying to play chords and I have a lot of difficulty keeping the strings pressed.
oh ya, I just started playing for the first time yesterday, but its still really discouraging.

dude that happens to everyone… you should practice easy songs that use simple chord changes, knocking on heavens door for example, then practice and practice changing chords until you get it, i say that if u practice a lot you should be ok in a couple of weeks, and also you have to wait until your fingertips are used to the strings and get hard, then it will be easy to keep the string pressed…

BC-166 • Picking Individual Strings (Beginner Guitar Lesson)