I am thankful for the love I am capable of giving and receiving.

Capacity isn't fixed at birth, and it isn't fixed by whatever your childhood handed you, though that's the story a lot of people have settled into by thirty.

It expands with use, awkwardly. The first time you say something plainly affectionate to a person unused to hearing it from you, it comes out wrong and you both look at the floor. The second time is less bad. There is no version where it starts smooth.

Most of what looks like an inability to love is just a shortage of reps.

Say the plain thing to someone this week. Badly is fine. Badly is how everyone starts.