

lean physique in 12 weeks?
I genuinely want to know if it's possible for me to reach a lean physique in 12 weeks? I made a bet with a friend of mine and whoever gets fit within 90 days, the other guy must pay up 50 bucks.
I'm taking the challenge seriously and today's day 1 but idk if it's realistically possible to achieve a lean and strong physique.
My ultimate goal is to achieve an aesthetic lean physique, but I know that's gonna take time, I'm not rushing that. But I want to know if it's possible to achieve a lean physique in 12 weeks.
I'm 182 cm tall 85kg currently, I could do 40 pushups in a row but suck at pull ups. Could jog 5km in 30mins, trying to incorporate calisthenics more but planning to get a gym membership.
Please be honest and I appreciate it!! Thank you for reading. I don't even know what question to ask so help me out please, tqq
TL;DR: is it realistically possible for me to get lean in 12 weeks?