Question

How to make data usuage limited in phone?

Answer 1

To set a data utilization(usage) limit:

1. Open your gadget's Settings application.

2.Tap Data use Cellular information use.

3. In the event that it's not as of now on, turn on your information restrict. Tap Settings. Switch on Set information restrict. ...

4. Tap Data restrict.

5. Sort a sum. To switch between megabytes (MB) and gigabytes (GB), tap the Down bolt.

6.Tap Set.

Answer 2

On nougat(android 7.x) there is a feature called data saver. It limits all background data guzzling apps. I think it will be of great help to you.
The feature is inbuilt.