Feel like giving up

Tia
I'm so frustrated! Me and hubby have been ttc baby #2 for about a yr and a half...I got 3 +hpt in December and days later started bleeding. The next month my best friend found out she was preg and month after sis n law found out she was preg meanwhile I'm trying but yet NOTHING...took first round of clomid this cycle and with being out of town for the holiday and staying with a relative didn't start opk testing til the 4th which was cycle day 15 for me last month didn't ovulate til cd21 have been testing but all negative...I'm just really getting emotionally and physically exhausted and feel like I'm gonna lose it pretty soon. I keep thinking if it doesn't happen this time that I'm gonna stop trying...dealing with crushed hopes month after month is just becoming too stressful 😔😔