I have invested in ETH when it was $105. Now it's $176. Will it be a good idea to take the profit now? Or I should hold on for better profit which may lead to less profit too

Suggestion is appreciated.
Its better to take profit while it takes a massive gained because as market price always fluctuating we dont know if it will rise or down in the future. Better to secure you capital first than wait for the long run and get less profit.