give urself 1-2 weeks periods to look for your wallet, noms & blue_rose is right, report to police immediately and cancellation of necessary cards shld be done first.
However, after those span of time, you need to move on man...am not giving you false hopes..but its the reality..you might not get it back, it happens to me before, at the end of the day, i just processed / request again all important document that i have lost from my wallet...but the money??? wat do u expect??? well..can't imagine, but its a hell of experience...