When creating your resume and applying, be very careful to use proper English, grammar, and spelling. Your application package is the only thing they have to judge you by. This is very important, because careless use of the English language could be a sign of carelessness in other things. You may be good at what you do, but your opening post wouldn't pass my job interview (just saying... for your benefit).
Also, be professional. You want to always portray yourself as a professional. Showing up at their door is not professional (unless you're a hitman).
Dress appropriately and maintain an inoffensive appearance. People get a first impression, and they tend to notice things that support that first impression. This is called confirmation bias. It seems to be human nature.
You may need to tailor different application packages for different jobs. For example, you may need to emphasize different skills depending on what you're applying for. For each job you apply to, rethink your resume and see if you can tweak it in order to bring out the important things for that particular job/company.
And (possibly for the interview)...
a coworker (a journeyman, when I was his apprentice) asked me this when I was very young:
"Why are you working here?"
I can't remember what I said, but it was something like 'to help you build machines/trim dies, etc.'
He said,
"NO! You are here to make the owner rich."
I thought a lot about what he said; about what it would take to make the owner rich - repeat customers, which means quality work at a competitive price and doing it fast to beat the deadline, no mistakes that would cost the company money, innovative designs that would save time and material, not getting hurt so as not to cost the company workman's comp., and the list can go on and on. And if you're costing the company money, then you'll probably get fired. So it makes sense. It may sound shallow, but I think it's a good work philosophy for an industrial setting. You'll notice that every benefit for the company turns out to also be a benefit for me. So it works out for everyone.
Anyway, it's something to think about...
The job application/interview process kind of sucks - the applicant must draw attention to their assets (i.e., brag... something normally frowned upon), and the employer must judge the applicant (another thing that is usually frowned upon).