Try these really easy ways to make your English sound really natural
1. Use "really" instead of "very"eg "We had a really great time by the Thames"
"It's been really wet weather this year"
"That's a really good idea"
2. Use "get" as much as you caneg "Can I get you a coffee"
"I need to get some bread"
"When did you get here?"
"I'm getting hungry"
"I got lost!"
There are also lots of phrasal verbs with "get" - get going, get started, get ready, get on, get up, get over, get married. Try to use these too - and listen out for them.
See how you get on!