Am new here,but all have seen is about crypto and recently I got interest in it but am a bit confuse wether one can use same strategy,and approach used in trading forex
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What really differentiate forex and crypto in terms of it approach,is the volatility same.
Trading strategy is the same but the approach should be different, you need to be aggressive in crypto trading since it's more volatile.
And how can one become an affiliate in altcoins for exchanges...
It's basic to become affiliate in crypto fo exchanges and crypto/altcoins, check if the platform have affiliate partnership, sign up, get your tracking urls, share it, then wait until someone register under your affiliate link.
...and also hold some Bitcoin for long runs maybe 2 yrs
Holding bitcoin for a long run needs a proper practice and proper knowledge on how to do it. Usually people uses non-custodial wallets, airgapped device and/or hardware wallet, these are all called cold-wallets.