Both my parents are dead

My mother passed away approx. 5 months ago. My dad had already been gone for about 3 years when this happened.

Without them, it feels like I have little to no reason to live.

I was an only child, my parents tried to give me a happy childhood. It mostly was, but there was also a lot of sad negative stuff that happened mostly due to circumstances beyond their control.

I had a hard time making friends growing up, possibly due to undiagnosed autism, so I turned inwards and spent a lot of time at home when most children were outside hanging with their friends and developing social skills. 

As an adult I never really focused on the goals that adults typically focused on. I never cared about developing a career, starting a family or travelling. I just take things day by day with no real goals or ambitions. But I kept a good relationship with both my parents and that gave me something to live for.

When my dad developed dementia, my goals were to take care of him and try to avoid having to put him in care. When he died it devasted me, but I felt like, at least he was free from suffering plus I had watched him decline rapidly over a short period of time. So I knew it was coming.

Once he was gone, I would still see my mother. We would reminisce about the past. We would watch movies or TV together and just enjoy spent together.

When my died it was completely different. She hadn't been sick, she was a lot younger than my dad and she seemed to be in good health. So it was a horrible, horrible shock when it happened.

Now, they are both gone and I just feel like, I really have no purpose in life. Nothing brings me much joy anymore and everything feels pointless.

I feel like, whatever my purpose was in life, it's now passed me by and I should just give up the will to live.