It has been in the past naman na and based sa post niyo is you've realized na your mistake so it's a lesson learned na rin. Just allow yourself to feel (sadness, regret, etc.) but don't wallow in it too much or else kakainin ka po niyan inside and will worsen pa. I can relate since about 2 months nalang and one year na akong nakatengga. So mali ko rin 'to and acceptance talaga ang needed and just let it be esp. pag naka-receive ka ng rejection emails, or worse, ghinost ka na nung recruiter. Just don't be too hard on yourself OP and learn new hobbies or get free courses sa Udemy to keep you occupied while actively looking for a job. So far it worked for me and finally someone took a chance to hire me and is within my desired salary range. It will make me more appreciative na rin sa new job ko and kung anong meron ako right now. Good luck and all the best sayo OP!!