How can I share my account with my collabrator?

To my understanding, you would like to use the same account with multiple users. 

I would suggest using JotForm Enterprise plan for this purpose.

For detailed information, please check the following link: JotForm Enterprise

Also, you can check the pricing here https://www.jotform.com/enterprise/pricing/. The pricing is based on the number of sets/users, the minimum is 15 which is 79USD/month.

If you do not want to upgrade, the following are your options:

1. To allow people to edit your form, set up a collaborator. Guide here  https://www.jotform.com/help/419-Understanding-Form-Collaboration.

2. To let them view the submissions, you can share them a grid listing report with static password:

https://www.jotform.com/help/105-How-to-create-a-Grid-Listing-report

3. You can send the form email to multiple recipients. Guide here https://www.jotform.com/help/39-Send-Notifications-to-Multiple-Recipients. Note this feature is only for paid accounts. Free can only add one recipient, and can only create one notification per form.

Let us know if you need further assistance.