You need a good spiritual director, not just opinions and suggestions from us.
We can’t know you and your needs as well as someone in whom you can confide and whose direction you can trust.
Having said that, you can do the basics:
Daily prayer. The Liturgy of the Hours is the best form of daily prayer because it is the prayer of the Church that follows the liturgical seasons, feasts, etc. Shorter Christian Prayer is the simplest form for lay people to use.
Daily Scripture reading with a good commentary. You can use the daily Mass readings to start since they are easy to find and they are in line with the liturgical Church year.
Do some active work in your parish. Help someone who needs help. Be open and loving to others, etc.
Find a devotion that helps you keep your baptismal vows, such as the rosary. But don’t do any devotion merely for its own sake. If any devotion becomes a burden instead an aid, cut back on doing it or don’t do that one.
There’s nothing wrong with wanting to do fun things. Why couldn’t you attend daily Mass and then go to the amusement park? Our faith isn’t a matter denying ourselves innocent pleasures, but in not letting innocent pleasures mean more to us than our proper duty to God and others.