Best way to visit Ireland with one's sweetheart?

One year wedding anniversary is coming up (in July) and we’ve been talking about taking a trip to Ireland.

… I know I’m a procrastinator.

I’d like this to be a no stress vacation where we don’t feel forced to ‘see all the sights’, but I also don’t want to be stuck in a very rural town with nothing to do.

When left unsupervised my spouse has a tendency to over-plan and come up with exhausting agendas which are great, but very stressful.

What should we do?

- Plan independently (hot spot reccomendations)

OR

- Use a travel agency (Affordable agency reccomendations)