if I've spent my time to gather top altcoins I would be in happy mood right now
It's not enough to hodl top altcoins of today because they can be relegated to the background tomorrow. Coins like Bytebal and BCC (Bitconnectcoin) were among the top alts in 2017 but they're no were to be found today on the top list. One important thing to do while trying to hodl is to identify tokens with use-case if you want to keep them for long term. Otherwise, buying trending tokens of today for the heck of it may result in loss in future where such tokens are delisted from exchange or turn shitcoins and worthless. For instance, at a point Walton (WTC) went down abysmally after hitting ATH in 2018 but it's coming up back strong now. If it weren't a utility token, it would've vanished into thin air like other worthless tokens. So, OP, it isn't enough just hodling. Make sure you're hodling tangible and feasible tokens so as to avoid bag hodling shitcoins.
You can't mention Bitconnect in your list for this matter. Bitconnect was a serious Ponzi scheme that was abused or even developed to scam people with a network marketing level type. Youtubers were promoting it everywhere and many clueless enthusiasts fell for it sadly.
Bitconnect is one of those examples that throw a bad shade on cryptocurrencies. It's said but there also enough good projects that could make up for it thankfully.
Byteball, well that's a difficult one. There was most likely no breath left in the community. It felt like it was around forever. Others are too, right, but yes not every single project survives. That's why we call those who are older than 3 or 4 years the dinosaurs of crypto.
If you look at many of the top coins, of course Bitcoin and Litecoin but also Dash and some others have a long history and those who held them tight do know very well today that it was worth the effort.