Please, talk to your T about it. Stress that you are safe for now- that should be enough for her not to report. She may want you to sign/ promise you won't kill yourself for some time.
I really think talking about it might help you review this decision- and reviewing it needs cause it is stg that can't be taken back.
And as BlessedRhianon already said there's nothing you can do to make it easier for others- imagine s.o. close to you commited SUI- can you think of anything that would make it easier for you? I know I can't.
I do agree that this choice is yours to make, however, I think that you should be aware of all the consequences...