Here’s the thing: Even if someone did laugh at you, which I doubt will happen, you will not be the first convert to feel this calling; there are many before you who knew their call before converting.
So relax on that issue.
Then you get to CHOOSE a monastic community. Even within a specific order there might be four monasteries near you, so you might want to visit several and get a feel for it. My friend visited four and chose the one that he felt needed him the most (that was HIS idea; he did not like it the most).
Next, the process of joining a monastic community is a very well-planned process. You will go for visits, longer stays, trial periods of discernment, and during that time your own spiritual counselor or someone else will be helping you with the discernment. It is a good process that helps prepare you and your family and helps you to finish anything that needs finishing, like school, paying bills, finding more family support, etc.
Then once you are in the novitiate, you get a long period of study. Many people decide to leave before ever taking their final vows. There should be no shame when that happens–the world just receives a very special lay person who is more disciplined, spiritually, physically, intellectually. And if you stay, the monastery has gained a wonderful soul who will pray and suffer for the world’s pain and suffering.
The thing about monasteries that most impresses me is that the monks bring and develop incredible skills and talents that are often put to good use: art, music, writing, healing, helping, bookkeeping, teaching, science, agriculture, working skills. ALL are put to some use.
Good luck and God bless you in your discernment. Read about monks, monasteries, Thomas Merton’s and Maria von Trapp’s stories. Learn more and worry less.