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.
It is up to you. I do not think that you must listen to the pieces of advice of all the guys on this Forum. Most of us are also at a loss. I am going to wait a bit personally, the other guys cashout.