First of all, welcome to the forum and the game

Don't give up and keep playing, you will get better. You will get used to the mouse and keyboard and the game. In this forum you can find many tips and also check out the videos from tightrope on Youtube
here. He has so many tutorial videos.
And also from HelpingHans on Youtube, his are for more advanced players but still very helpful
here.
Gl and Hf!