bear market will end. but I don't think that is going to happen within june now. some experts said this market crash can take over a year. and it'll likely kill 90% of the coins in market. (it is just a speculation anything can happen)
I say if you have USDT then don't invest right now and wait for the right moment.
A good practice is to buy when you are well decided and you already think that the coin you are choosing to have a longer plan ahead, the market keeps bringing fears too many weak holders and newcomers, if you are not willing to hold and wait, it's good for you to keep your asset using usdt or any stable coin for now,
unless you are also willing to venture ahead and try your luck by scalping the market and see if you will manage to earn decently.