Don't take it too seriously, anon. If you're playing solo, odds are you're gonna lose most of the time (especially if you're unlucky enough to have teammates who couldn't find the word 'objective' in the dictionary if they were paid to), but you're not really penalized for losing or dying a bunch of times and the more you play the better you'll get.

Try a bunch of characters, find a couple you like, have fun with it.

(and for the love of god, if it's overtime, PLEASE JUST TOUCH THE OBJECTIVE)