Grieving is so different from one person to the next and it comes in many stages .
I have suffered a tragic loss and it honestly took about 5 years to go through the whole process and grieving will never end it will just get better with time .
I think you need some time alone and ponder what you ACTUALLY want . To me it sounds like you're not ready to start dating , which is totally fine . When you're ready you will know .
I suggest staying off tinder , most people on there are not looking for emotional connections .
And remember all these "crazy" feelings, thoughts and emotions are perfectly normal for someone who has been through a tragic loss .
And last , every therapist is different and there is not always a connection with a therapist . Try another one but remember you only get out what you put into it . Be honest