Keep an end for such thoughts. There is a solution to change mobile number in whatsapp without
Want to change your old number linked with WhatsApp without losing access to the groups you had joined?
Also See : Recover Deleted Whatsapp Stuff
Here’s I ll explain you clearly how to do it
Go to Settings -> Account -> Change Number -> Type both your old and new phone number and hit ‘Done’.
You will get verification message and confirm it by entering verification code.
Thats all . You’re done now.
Now you can chat as usual with your whatsapp friends using same application.