Practice on yourself - layout all your products as you would for a real client and go through the procedure step by step - plus it's a little treat for yourself - that's how I learned how to do all my beauty treatments, I even do my own nail extensions and spray tans which were tricky at first but got there in the end. You could also offer free treatments, ask in leisure centres, hairdressers, council offices, community centres, churches - anywhere that doesn't already have a therapist get permission off the owner first, ask if you can set up a table, get a sign saying 'Free manicures & pedicures' explain to each customer you're doing it to build your portfolio and get extra practice - ask to take a photo of the finished treatment too and you can see over time how you are progressing. It's a good way of meeting new people in your area and making friends and I would imagine most people would give you a tip which will cover costs of your products. Make sure your insurance is up to date and covers everything you need !! Take business cards too you never know what could come of it.