Sorry to hear about this man, I wish you good luck on getting a new job soon. I've never had a job before so my advice is limited on the topic area but I do know a 'life hack' where you print your CV/resume on heavier paper so that anyone who looks it and picks it up gets the impression that it 'feels' more important than other documents. I can't remember where I read that but it sounds like a cool idea, one that I'll keep in mind the next time I have to hand in an application form of some sort.
As for girls, I used to feel the same way too man and I used to have the knack for creeping out girls that I liked. It sounds cliche but just be yourself, that's what I've recently learned to do, and you're bound to attract a like-minded girl who understands you and you can easily converse with. I know being shy is hard, I've been shy my whole life and still am but you kinda have to tell yourself that you'll overcome the shyness and that it won't stop you from asking a girl out.
Confidence is the hardest part and I can't guarantee that it will just come overnight but it's something you simply work at, something that grows over time. Over a year ago, I asked a girl out for the first time ever and though I was really awkward at it, I managed to do it, despite the fact that I was turned down. Having done that once though, I know I can do it again and I know I can do it with a lot more confidence because I've already had that one experience.
One instance where I totally felt like I was being myself around a girl quite recently was (about a month ago now) when I was talking to a girl on the bus on the way to university who was doing similar subjects and who was quite like-minded. Just when I thought we were going to part ways when we arrived on campus, she told me (she didn't ask, she 'told' me, almost forced me

) to get a coffee with her so we spent the next hour walking around campus and talking and it was nice. It wasn't a date and I considered the whole thing as simply making a new friend at first but because we had similar interests, I felt relaxed and felt that I could be myself which was really relieving, there was no stress or anxiety about what she was going to think about me. It's things like that, not 'getting the hot/popular girl' but meeting someone similar to you, that boost your confidence in a way because you're so at ease with them and their similarity to you reinforces all the aspects that make you who you are (in my opinion). Just a little anecdote there if it helps, just to show how important it is to be yourself!