Stop learning grammar and words all the time. If you want to speak English, you must practice. Practice means you open your mouth and tell something. Don't listen to nervous people who say your grammar is bad. Nervous people have problem, not you. You can choose to be happy and live without stress. Watch this video from my car to see a real situation and find your solution.
00:00 Open your mouth
00:20 Simple answer
01:01 Practice means speak
02:17 Car example
03:14 Most important technique
04:52 Don't be stressed
06:02 Stupid questions
07:18 Who is stressed
08:45 Not my problem
09:49 English is same
11:56 You choose your life
13:15 Ping pong game
14:41 Stop and change yourself
15:30 Real situation solution