let's start saying i believe in btc to have a raise over the long term, actually i got some btc on some exchanges and i could even put more money in (but actually i have in other safer investment so for the moment i'm not touching that money).
actually rich people have a lot of btc and decide to sell for dimishing the size of their number of btc or they keep the btc go without selling them.

but what for people, like me, that have a certain sum available to invest but w a certain lag due to the sepa?
i should put all the money i can invest over the exchanges and then trying to trade profitably?
i sohuld put all the money i can invest over the exchanges and buy everything i could (if the situation isn't that bad) ?
i should put the money only when i'm ready to invest (so 3 days for a sepa) ?

at the end of the day how i count how much money i have? i count only btc or i count the $ ?