IF oyu find you are having trouble - or are just unsure - ASK FOR HELP! Nothing worse than watching someone try and try and tray to launch to no avail. It eventually ends up entertaining those who have gathered - and frustrating those who are waiting to launch.
Nothing wrong with asking someone who is there. I have often offered to back the boat in for families on Long Island because they clearly are puzzled or frustrated themselves.
Good luck and ENJOY! Only thing better than owning a boat - is actually being out on the lake with it!