This quote means that the speaker has had an eventful and passionate life, with a lot of ups and downs. They hope that they have been able to express this in the writing they have produced, as they believe that this is what makes it meaningful. The speaker feels that their life has had some hard moments, which they describe as being “reckless” with things; likely meaning that they have taken risks, followed their passion, made mistakes and had successes. Ultimately, the speaker is proud that their life experiences have been able to shape the artistry of their writing.