Nervous for a new job

Im getting a new job and im so nervous >_< I actually really like the job im at right now, the people are fun to be around and the work is easy but im not making enough hours to pay my bills, (im there 5+ days a week and barely making 20 hours) so im already sad I have to leave. Luckily the new job is one I found out about because of one of the servers at my current job so I won't be completely alone. Im mostly nervous because the place isnt even open yet... this is a second location they're opening so it's not like they dont know what they're doing but opening a restaurant is nerve wracking. I mostly just wish it was possible to work both my current job and the other one but unfortunately its just not feasible :((  I just feel bad because there used to be two hosts and now im the only host so the I give them my two weeks they're gonna be so screwed