If you invest long term but avoid Bitcoin then I would say your investment is incomplete. Bitcoin must be preferred as an investment platform if you are thinking of long-term investment. Outside of Bitcoin I don't see any coin that can be invested in for a long time. Bitcoin has always been the best coin to invest in for as long as I have known about investing.
I have been investing in long term plans for a long time and my investment platform is Bitcoin. I held my investment as well as purchased bitcoins in several steps. I bought some bitcoins when the price of bitcoin was $22K, then I bought some bitcoins when the price of bitcoins came to $25K, then I bought some bitcoins at $28K, and then I bought some at $35K.
That is, even though the price of Bitcoin has changed in these few months, I have invested in Bitcoin regularly. The reason I invest in Bitcoin during these periods of Bitcoin price volatility is to hold my investment for the long term. The price of Bitcoin is now around $45K and I have not stopped my investment at all at this point but I will be buying several more Bitcoins in a few days.
Many may dissuade me not to invest at this time but I will invest at this time because I have faith in the market and my investment is in long term plan.
There are not many reliable coins apart from Bitcoin. New coins are launched every quarter with attractive features like improved scalability, innovation in Blockchain. These new coins went up for sometimes and are then lost away in darkness. The reality till date is that we have Bitcoin standing firmly for over a decade and its continuously growing. This makes it ideal for long term investment since we are sure that Bitcoin will be there after 5 years or even beyond that.
You bought it in DCA manner and that's the best way to accumulate Bitcoin. If you have a strategy to accumulate Bitcoin then go and accumulate in that way. There is no need to pay attention to what others are saying as long as you are comfortable. The more we use our brain, the more we learn.
It all depends on experience. I would rather not sell now because I am not sure how long this growth will continue. But I know that after halving a new cycle will start, and if I sell now, I may lose the opportunity to buy cheaper later. And someone more experienced can buy and sell in time.
As I said its all up to you. Go as you like it becasue in the end its you who will bear loss or enjoy profit. If you think its best to hold now then go for it.