I’ve been out on a plan and have a call with HR later today. What should I do 😣?

Been with my company for almost two years. last years because of covid I finished 60% to quota. Thisnyear they increase my target and to this days I've only done 20% of my target this far. I've been struggling to meet my month run rate. I have been doing everything I can by they hired another AE who took the better part of my territory and left me struggling with the part that has hardly any inbound leads and hardly does prospecting cut it. ive been working really hard to try and achieve my goals but they refuse to understand the change in my territory has anything to do with even though the other AE who took over is thriving. now I'm on a plan because of this and I feel sick to my stomach because of this treatment but don't wanna show it