I don't know if it is sure and safe but supposedly i pay and not pay such cosmic commissions as you are now. How can i do this ?
I think you tried to tell about the Gas fees. But that was not commission mate that is miners fees. If the miner stopped mining then trx will not confirm, so your coin will behold. I think you can set low gwei to lower the fees. If you are not making big payments and pay through other cryptos then you should avoid ETH. You can use LTC,XRP,XLM etc. And if you use ERC-20 or other ETH based token then there is no way.