I actually think that USDT is something that has quite a big risk, especially for the long term.
they are supervised and audited by a third party in this case indirectly they are the same as someone who is behind it and this makes usdt not good enough for the long term.
I'm not saying it's bad but with a system like this it will be very risky in the long term even though their liquidity is large
As used to prevent big losses when red downfall is ongoing, USDT is one of the best option to trade your crypto while waiting for the final dip, experienced traders use this stable coin as good advantage controlling the value of your investment capital, but if you are talking about long term, I follow you with your opinion, is not good for investment those negative news about this coin will hurt the reputation in some point.
If you want or if you are planning to find an alternative, BUSD, USDC and DAI serves as how USDT being used from this industry
you can use one or more if you are not comfortable placing your entire money with one basket.
but it never hurts for beginners to try as an exercise for them to understand better. but remember with proper TA and research don't use instinct.
I think I will try according to the advice you said thank you for the advice you offer.