It depends on where you live if you stated "low paid jobs". Many people are satisfied with how they earn from their jobs and treat the crypto trading as their secondary source of income not the opposite on most cases.

Using trade signals could get you some pros and cons but you will get lot of bad ones in long run. I would not suggest to rely on trading signals if you are planning to do trading on long run, you won't get anything in terms of experience and how to determine a good market by yourself. I would rather to do it by yourself even though you lose some of your capital at the beginning, you will learn something from there.