I want to become a software engineering so,which course is suitable for this job?
To become Software engineer, you need to get Bachelor's degree in Computer science (Eg. BE, BTech Computer science/engineering). Since you are in 10th you can think of taking up vocational courses like Computer science in 11th & 12th. That can be helpful but its not a requirement for getting admission to engineering colleges. You should prepare for engineering entrance exams which are given immediately after 12th exam.
If you want to write server side programming, learning Java, Node.js kind of languages will help.
There are many books on beginners step by step coding (even youtube videos) that will teach how to apply logic and solve a problem. Start with simple problem solving and then expand.