There used to be some saying like "if you copy one's paper, it's plagiarism; if you inspire yours from a big number of papers, it's a completely new research paper".
There is the fear that the advice is not good or not well used. There's also the chance some may give you advises that helps
them, not you...
I would say you better read as many advises as you can, then take the decision for yourself. Keep in mind that since you are new, there are chances that you'll make mistakes, so consider reading a great deal and not investing too much too early.
Are there specific trusted sites that can narrow down ones knowledge on investing in cryptocurrency and can boldly say “This is a financial advise” because there are so many contents out there and some of them are contradictory..
I'm sorry, I don't know of any, but:
* especially in crypto (which is still considered new/not mature enough, and also not regulated properly), I'd expect those who give you financial advises and name it financial advises, may actually be scammer.
* the actual (real, trusted) financial advisors may not know (or care) about crypto; and you can't blame them: they've done their studies in/about fiat (and may not be open minded enough), so they may still see crypto from "high risk" to "scam". But even if you'd find open minded financial advisors that can tell about crypto, they may not go cheap (and certainly not on free websites)
So I think that you'll have to spend valuable time searching and asking.
My advises (non financial, dyor, you know the drill) are:
* start with small amounts you can afford to lose or keep locked in crypto for many years
* DCA - buy multiple times smaller amounts instead of one big amount - just beware the exchange withdrawal fees (probably withdraw only after certain threshold is met)
* focus only on bitcoin until you start understanding which altcoin/token/nft/defi projects are scam and what have the slightest potential to actually grow; and make sure it's the actual bitcoin, not altcoins borrowing bitcoin name or pegged to bitcoin.
* you may want to do some reading about KYC/non-KYC exchanges before you send money to any of them; then you'll have to choose an exchange platform you'll use (make sure it's a reputable one, if in doubt ASK); see about the fees, as said; if KYC is needed you may want to fill that to make sure you don't get later into surprises
* learn about wallets / wallet safety / keeping backup seed safe / hardware wallets, clipboard hijackers so you don't lose your coins to hackers
* keep in mind that every crypto coin has its own blockchain (own universe) so you'll have to use bitcoin blockchain for bitcoin