Depressed

Hey guys... Me and my fiancé have Been trying for almost a year now to conceive.... Well every single person I know have posted on Facebook or texted me and let me know that they are pregnant every single person I know is either pregnant or just had babies.... I am so depressed and I feel like it is hopeless to try.... I am so tired of seeing all my friends so happy and I feel like that makes me a bad person..... Any advice on trying to cheer myself up....?