It's not enough to hodl top altcoins of today because they can be related 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 may result in loss in future where such tokens is delisted from exchange or turns shitcoin 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 token. So, OP, it isn't enough just hodling. Make sure you're hodling tangible and feasible tokens so as to avoid bag hodling shitcoins.