This could be the cause of not properly do some analysis before going into investment, i believe many newbie investors do like jumping into the crypto market when there seems to be all Green, forgotten no one does investment that way rather during bear you could point out the best coin to choose. Solana and ETH will definitely gain back their value, its common and also one thing constant with the entire crypto market. Whenever there's great change you could feels the market will no longer recover but after some while they gain back their previous price but may like take time, that is why investing in altcoins is not that a wise decision but many feels is to expand their portfolio.
Hold tight your bitcoin!