Most will probably not know or care. This can be rather helpful.
Some may make a joke of it. For these a quip like, "practice makes perfect" may suffice.
You may find some who express concern. These are those with whom you might find encouragement and support.
It can be rough to deal with social interaction in school during the best of times. Humans are just beginning to learn social skills during adolescence. To do this in the prison like environment of school can be extra difficult. However, the passage of time can do much to make things better.
With time one can learn to manage the jerks who can make life difficult. For example if someone were to say something to ridicule you in a group, you might respond, "I am curious, are you being be hurtful intentionally, accidentally, unwittingly, vindictively, or do you have an emotional deficiency that needs to feed off inflicting pain on others."
A person who uses a public forum to cause embarrassment for others, may not know that he exposes himself to the same arena to be called on to give an account for his actions.
You will probably find that most will ignore the situation and pretend that nothing happened. This is because most are unfamiliar with what to say or do. This can help you also as allowing time to pass can give room for the intensity of recent events to die down.
At some point you may wish to consider the dynamics of what led to the attempt. It might be a single triggering event or a longer term drift towards considering it. If it was a drift, it may reflect the need to examine brain chemistry. Some people are deficient in the manufacture of chemicals like Serotonin or GABA. Others might have a chemistry that reabsorbs these chemicals too quickly. There are many possibilities. There are all sorts of therapies with which to experiment.
If people are giving you a lot of attention now, you might be able to use the opportunity to experiment with what is available to see if anything might be found to be useful.