Cathy Wassell is a business coach and owner of Socially Contented. She’s also an autism advocate and the founder of Teen Calm, a subscription box for anxious teens (teencalm.co.uk).

What I did last summer

Q Last year I went on holiday with the girls and I cheated on my boyfriend. The guilt is eating away at me. Should I tell him even though so many months have passed?

Anna, Hull

A It doesn’t sound as if you