How can I retrieve my transactions from my trial account after subscribing?

Looks like you’ve subscribe to a whole new account, hope14.

You might want to cancel the current account, then go back to your trial and re-subscribe from there.

Here’s how to cancel an account:

1. Sign in as Admin to the account involved. 
2. Click the gear icon and go to Account and Settings. 
3. Go Billing & Subscription tab. 
4. In the QuickBooks section, select Cancel Trial.  

Check this out for additional information about this process: Cancellation. 

Once done, open the trial account then resubscribe. for more details, take a look at this article: reactivate QuickBooks Online. 

Stay around this forum if there's anything else you need.