Workflow design help

Hi all

I need help with designing or making my current workflow better. This is my first time creating a workflow so i am keen to learn. Please bear with my inexperience

The workflow is used for email notification based on status changes made on a sharepoint list. The list is a DIY Ticket system via sharepoint online. Current list is as below:

1. When a ticket is created, an email will go to hello (my test email account) and the ticket creator
2. When a tech picks up the ticket, he changes the status from open to pending and assigns the ticket. An email will go to both the ticket creator and tech which the ticket has been assigned to
3. When there are changes made to the Notes text field, an email will be sent to the ticket creator. My attempt of keeping the ticket creator informed of updates to the ticket
4. When the status is changes from pending to closed, an email will be sent to the ticket creator

Issues with this workflow at the moment

1. When the ticket is still in Open status, any small changes to the ticket will result in another email being sent (this is to be expected?)
2. In order for the ticket creator and tech to receive and email when the status is changed to Pending, the tech will have to first change the status from Open to Pending and then assign the ticket. If notes were entered during this process only the ticket creator gets an email (this is because of the If statement i know. Not sure how to approach this)
3. When the tech adds a note in the Notes field, the ticket creator gets an email. When the ticket creator replies or enters a note in the Notes field, only they get an email. Is there a way to make it so that if the tech adds a note, the ticket creator gets and email and if the ticket creator adds a note the tech gets an email?

I hope to hear from you guys soon

Thanks for your time