With the right psychological mind set can a trader make it with just random signals rather than spending too much time understanding all about technical and fundamental analysis?
Anyone can provide trading signals. Even someone that is not good at all in trading and losing can provide signals. It is better you learn how to trade than to be disappointed in signal providers. Signal providers only cares bout their pockets and they do not care about you or your money at all.
Does it mean one could become consistent in the market learning just a few trading tips with well structured psychological behaviors?
What brings about consistency? Good psychology or years of experience. What do you think

If you want to trade profitably, you need to first start with disciplining yourself. Learn risk management. Start with very small amout of money. Learn how to control you emotions. Learn how to use just low leverage. Avoid shit coins. Having good experience in trading can take a year.
But always know that trading is very risky.
You got it right here.