actually it's simple, depending on what altcoin you hold. if altcoin that you have currently has no further development my advice you need to sell immediately or replace it with altcoin which is better than that. patience is a normal human attitude. but you also need to think ahead and don't rely on patience or stick with altcoin that is difficult to develop.
No project can tell you exact future infect only can make predictions and assumption about the price. About crypto price I think everyone should be positive and think widely, as much as you expand your investments you will have chances to see price higher. So before investing in crypto projects I keep in mind about before and after price changes, even if its high or low.
Any project that predicts a price is a scam coin. If they are trying to predict the price then they should make their coins as a stable coin.