How long was the relationship with your ex? What were the reasons for the breakup and who instigated it?
Do you live close to each other? You said you’ve been “chatting” since March (text or phone calls) so I assume you haven’t seen each other in person..
You could continue talking, but YES, use more restraint and don’t overwhelm (come on too strong) her.
Meet up in person if she’s willing and take things slowly. It seems there is much to discuss since you’ve been apart for 8 years.