you desperately want to achieve a career and make something of yourself
Commendable! Lying on your résumé is not going to help you achieve that, unfortunately.
there is no way I can fool somebody into thinking I am a kid
You won't, true. Luckily you don't need to. "Entry level" doesn't mean the jobs are for young people; they are for anyone entering an industry/field…including people, for instance, in their forties who want to start a new career.
I had an idea…how likely would I be caught?
Super likely. But more importantly, are your aspirations for a career actually going to be fulfilled that way?
Look, you aren't going to just short-circuit the job market and walk into a senior-level job and "make something of yourself." If you want to feel like you are doing something with your life, find something you like to do—maybe it is engineering, maybe not—and try to find a job or internship where you can practice up and learn from people with experience. Go to industry meet-ups and meet people who work in the kinds of jobs you want to have. Be honest about your aspirations and ask good questions. Before you know it, you are networking! And at the very least, you could probably get some good advice about what your next steps should be.
IMHO the last thing you want to do right now is assume you know more than you do and try to "fake it till you make it." That is just going to slow you down and discourage or overwhelm you. Be humble, ask questions, and respect the experience and time of people who have been working in your field for a while. They have a lot of wisdom to share! And nobody's looking down on you, unless you show them disrespect by trying to fool them.