Math question About CoinGecko app

Hi, sry for my english. I have a question About CoinGecko App. I am a little dumb but here we go : In 2022 I buy 14500 usdt at Binance, next i buy and sell many altcoins at loss ( big mistake) so in a moment I have 10k of losses ( I track manually all the transaction at CoinGecko). Well, with the few USDT that left I buy BTC and hold till now. My btc now have a value of 18k but CoinGecko say that I only win 1500usdt of profit. So in resume I forgot to add a few altcoins transaction? I mean, if at start I buy 14500 usdt and now my btc value is 18000, my profit is $3500 or I miss something? At coingecko the btc quantity shows fine. Thanks and sorry