First of all, to disclaim that I don't claim to be a successful veteran, nor am I an altcoin investor or currently holding any. This is based solely on experience and observations of the altcoin market. When investing in altcoins, never go all-in for long term holdings. Deep bear markets often lead to the bankruptcy of altcoin projects, and they are quick to exit liquidity at any time. So far, there's no effective way to survive a bearish altcoin market other than capitalizing on momentum while the market is still bullish.
Even if you have done TP and the altcoin price continues to rise, remember not to enter again. Disciplined profit management is always better than taking risks where you cannot measure the potential loss.