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.