Would assume you are new to cryptocurrencies and buying ETH at such a high gas fee surprised you the most. A few months back it was much higher than that and it is just something that comes along whenever there's a bull run. The amount of transactions per day volumizes and this increase puts a toll on the machines that compute for these transactions to be processed, thus causing for shortage and whenever there's a high demand and a low supply, a price hike happens.
ETH 2.0 promises to solve this issue anyway, so I'm thinking we should just wait for this issue out until the fix arrives, what you said about profits and paying high gas fees may be true to you but not for others, so I wouldn't fully agree on that. That being said, an issue like this isn't something that you would be forced to deal with everyday anyway, so it's not like you have no choice or agency for when you would time your transactions.
Sometimes we feel not good after paying a High Fee on ETH 
But I want's to know why this?
I feel my emotions with this
That doesn't matter if gas fee was too high at least you earned good enough to fund your holdings in a profitable ways. Everytime price of ethereum and bitcoin goes higher with fees it will always continue to rise, depending on the percentage of transaction fee bracket. Unlike the old days, cheaper tx fees was still worry free but if small priced coins that we have will soon come up on that stage I guess we will also be concerned if fees itself will also become expensive. But I want's to know why this? I feel my emotions with this