Practice wherever you can and whenever you can. Any practice is good, whether you speak to someone who is a native English speaker or not.
It’s important to build your confidence. If possible, use simple English sentence structure that you know is correct, so that you can concentrate on getting your message across.
Try to experiment with the English you know. Use words and phrases you know in new situations. Native English speakers are more likely to correct you if you use the wrong word than if you use the wrong grammar. Experimenting with vocabulary is a really good way of getting feedback.