As a newbie one finds it difficult to know the right time to invest. I really want to know if I can actually invest into Bitcoin at this moment.
As a newbie the first thing you should do is look for coins which have huge marketcap and currently the best coins are bitcoin and ethereum.
Currently bitcoin is in a dump and near to it's last bottom price in this dump and so yeah this is definitely a good time to enter the market and take your position.
Don't go for low cap coins as they are risky and highly volatile. Save your capital and invest in bitcoin and keep monitoring until you gain confidence over the months.
Newbies need to know Bitcoin volatility and how it works. So the more you know before investing, the more you can benefit later. And there is no alternative to Bitcoin for investment.
If you have a small amount of money I would say with having the risk you can hold some altcoins. Among them are ether, BNB, metic and sol. These are very good projects for investment. As the bitcoin price reduce to $20k it is the proper time to invest.