Most people here (myself included) have shared at some point those same feelings, being left without a sense of direction in life after discarding the WT. I think that it will get better for you.
1. Love of God and people around me are things that make me excited. Wanting to do good things to those around me. I also recommend you finishing college (i'm doing my graduate studies now and I'm really benefitting for it). Also enjoying many friendships. There are indeed good people outside the org, no matter how badly they were portrayed in JW literature. Obviously you won't be compatible with everyone, but there will be some with similar hopes, values, interests as you.
2. This board is a therapeutic place to share common experiences as JWs and vent our troubles with family still in, the congr., etc. I used to spend much more time here months ago when I was confirming all my doubts, mostly reading other people's posts. I know that after I formally leave the org, I will visit this board more rarely.
3. You'll find a mix here. I do believe in God. You asked why? Because I have faith that there's someone who cares about me and you and what we see now is not all there is. Also the love Jesus showed through his entire life and by his death move me to love him back. I actually have been to church and enjoyed it.
If you feel really confused and in a deadlock situation then do get some professional counseling. I hear that it does help you sort ideas.
I wish you all the best in your journey! You're lucky you escaped while so young.