That’s good if you are willing to work hard on your physical appearance and there is good news for you, you can have home gym visit: http://powerplusfitness.com.au/
That’s exciting that you’re ready to learn. Many gyms will have introductory courses to new members. YMCAs have a program called jumpstart and many other gyms have similar programs. Also group exercise classes will sometimes show you certain exercises depending on the class format. The best bet though is hiring a personal trainer to show you the ropes. Costly yes, yet you’ll learn quicker.