My research aims to understand how complex organic molecules (COMs) are formed and distributed in regions where stars are formed. To achieve this goal, I have used particle accelerators in France and synchrotron light (Brazil) sources to study the formation of COMs via energetic processes. Next, I derived the refractive index of these molecules and used them to interpret space-based (ISO, Spitzer) spectra of protostars. For the next Era, I focused on the development of new approaches to interpret those observations, which resulted in an artificial intelligence technique to find spectral signatures of COMs in space - the ENIIGMA code. Some highlights of my past research are: (i) there is evidence of energetic processing of ices toward protostars and (ii) the external irradiation field of OB stars modify the ice reservoir extent in protostellar envelopes. Currently, I am providing the astrochemical community with a comprehensive database of laboratory data and tools to be used in the next Era with JWST. With JWST, I will contribute as PI and Co-I of different proposals, to enlarge the amount of COMs detected in star- and planet-forming regions, as well as will provide essential laboratory data for those discoveries.