And what are the coins that you still holding? Investing in the new projects are so risky. Holding strategy is not bad as long the project has potential in the future but if that is meme coin or just a trash project then you will likely losing money. You can also do trading but must practice first, start with small capital until you know how to make profit.
I see you don't understand how stablecoin is useful. If you are a trader you will use stablecoin as a safety fund like when the price is dumping you will convert your coin into stablecoin just to prevent from losing money. And yes it is risky if you store all your money in stable coin there are still many people doubt of stable coins so it is better to store your money in the bank.
I don't think tron will be vanish soon, tron is one of the top in the market it has already gained strong community but the problem of Tron is lack of marketing. Tron has potential to become like Solana or Binance smart chain because of cheap and fast transactions.
If the NFT has benefits or to use as an items or characters for the games just like the Axie Infinity then these NFT projects will last long, it is still trendy nowadays. I heard the news that Ubisoft will getting to NFTs, it's a good idea for company to step this new technology. In the future I believe more companies will getting to NFTs.
Of course yes, now is the right time to buy some altcoins because as you can see in the market the prices of the altcoins are starting to recover so it is good to buy some altcoins right now and hold for long until the coin you invested will make a new all time high.
yes of course those buyers are investors just like me. Last year, I bought some gaming tokens and I still holding it until now because I'm not gaining profit yet, the price of the token was down but I believe the project, they are still developing it to improve their game and soon it will become hit just like axie game.