Struggling with Tawakkul and Religious Guilt

Assalamu alaikum. I'm a born Muslim and I've been trying to get closer to Allah this year, but I'm really struggling with guilt. I feel like I'm not doing enough and I keep making mistakes and sinning. I hear stories about people who pray and give zakat but are punished for one sin, and then I hear about a prostitute who was forgiven just because she gave water to a dog. These conflicting stories confuse me and make it hard to just do my best and leave the rest to Allah. I regret my sins and I ask Allah to guide me to stop them, but I'm scared for my future and I overthink everything. How can I overcome this fear and find peace in tawakkul?