For sure, this is the perfect moment in year to invest in crypto.
1. the price is down so with 100$ USD you can buy more units.
2. you shroud focus on maximum 4-5 currencies.
3. don t panic when the price is going down for one of them. (if you sell you clear increase the lose)
4. tell to all your friends about your currencies. (don't keep only for you as profit potential)
5. don' t invest in dirty coins!
This is what i did in Jan 2017. I invested 100 USD now I have 1900 USD.
Personally I sold all the currency on 27 Dec to USD and yesterday i bought again the same currencies but times more units because the prices are lowest possible in year.
PS: this things, with country x banned the crypto currency, or exchanges or regulations are part of the phenomen and this will result in a more notoriety of crypto markets! (they can't stop at all this phenomen, they know this).
I think if you buy BTC now, you will need to wait a longperuod of time before it recover its previous price. You'll just need to have faith with it.