This doesn’t always have to be expensive – a Japanese person will often want to barter for English conversation lessons. Listening to your partner and hearing yourself will help enforce correct pronunciation; urge your partner to correct you if needed. The most rewarding aspect of this is that it will help to teach your brain to think in Japanese. Conversations in textbooks are predictable, and to be honest, nobody really talks like that. Teaching yourself Japanese gives you zero opportunities to practice conversation. There are plenty of meet-up groups through Meetup.com as well as ads on Craigslist, and you can always check your local school and community centers for opportunities.