I'm trying to send some BTC to my exchange wallet.

If my exchange wallet has an unconfirmed incoming transaction with low fees(probably getting stuck), will the second transaction not be done until the first one gets confirmed or gets cancelled? or it doesn't matter as long as I put a high fee on the second transaction?

I sent a little amount of BTC from my wallet to the exchange wallet, it was my first transaction, and I didn't know that with a fee this small, the tx will never get past the chain. The fee the wallet recommended me was just too high(almost half of what I'm sending) and I put a near zero fee. Now it's stuck, unconfirmed, and I heard that after 72 hours it gets cancelled? but the wallet seems to be rebroadcasting it every time I check..
I tried accelerators (free ones since the acceleration fee is almost as high as the amount I'm trying to send), but they seem all overloaded, or they say my tx is invalid?
Can someone help me out? is there an alternate way out of this?
My txid is 63e0cf1edc2eff3c7af8280b1cdd5ab0cc6326ca8144d7a5e65f55af8c632350 if it helps. thanks in advance