I suggest looking in here for some third order or lay ministry that is local to explore and discern with them Though do keep in mind, that they do maintain the spirituality of the order in the world, so I suggest finding out what your spirituality is. If there is a particular charism (prayer, teaching, poor, elderly, etc.) that you are attracted to, that is also something to discern.
Talk to a priest about a recommendation to a priest for spiritual direction because you are discerning a vocation. Given the need for a spiritual director while discerning, priests are more willing to give up what little spare time they have for spiritual direction. Retired priests are also a very good option. You need someone helping you along the way who can give you an unbiased third party insight. Otherwise you’re just throwing darts blindfolded hoping you hit the bullseye.
Since you are still relatively young and your health may recover, it’s probably not a good time to make a decision unless the doctors have told you that this illness is permanent. There are religious orders that accept people with physical ailments as long as it is well controlled and you are mentally healthy. Such orders include the Visitation Nuns, Benedictines of Jesus Crucified, and others. It would be worth looking into them if you still feel called to religious life.
In that case, is there a spirituality you are attracted to the most - Franciscan, Carmelite, Salesian, etc? There are third orders available all over the world and most can be located through a simple web search. As for consecrated single life, you would have to look at Secular Institutes and contact the ones that you are most attracted to.
Spiritual direction is something you should look into if you don’t already have an SD. They can be invaluable if you find the right one.