Using a leverage is you are allowing the exchange to borrow some money for your trade of course if you can't pay anymore it might get liquidated if you are making a trade with 1x looks like you are doing spot trading not futures trading but in the higher leverage this helps you to get more profit but if you make a mistake might ruin your wallet balance. Always trade what you are willing to lose.
That is true but I will not consider future trading as making a mistake because it is normal that if newbie start to trade using leverage, they will lose, even they will lose if they are just trading without leverage but the loss will not be as much as using future trading. I remembered when I started future trading, I used 125x all because the little I had was multiply by 125x, making it very huge amount, but I did not know that the liquidation price is very near which was what happened.
The desire to earn quickly and a lot, forces beginners to use high leverage. Obviously, they consider this type of trading as a casino, while they expect to get only a positive outcome of the transaction for themselves. But the reality turns out to be different and they lose their deposit after one unsuccessful transaction. Therefore, you made the right decision to delay margin trading.
Please what did you mean by unsuccessful transaction while trading, I do not think making transaction and trading are connected.