yeah dont waste your money just hiring a day in a studio with someone to see what they do, that wont have much long term benefit at all, you'l find the day fly out the window and you'l come out with a tune probably but it wont be something you've made off your own bat and you may not, or you may depending on the person, be happy with what you end up getting for your money

if you check local studios in your area and ask nice enough you'l find some shouldnt mind you too much sitting in on smaller sessions, i was lucky i took some work experience in college at the local Parr Street studios which has various sized studios within the building, started sitting in on some sessions with smaller local artists both electronic and more acoustic based stuff, and then one day they let me sit in on a big session with a pretty big band and then i went most weeks for a while and got to see some great artists at work

you'd be better spending any money you do have on the basics for what you need and get your head around a good sequencer etc , get checking back on there for some awesome topics on everything from mastering, loop use, synths, EQ etc etc