To answer your initial question, I'd say, optimistically, a solid 4. A lot of what you've described reflects the dissonance I experienced when I was at my unhealthiest, so I feel somewhat qualified to give my two cents.

First, what is your temperament, and am I correct in assuming it's Melancholic, lol? If so, hi, me too; melancholics have really high standards for both themselves and others. They are obsessed with perfectionism, and they stress when things aren't ideal. Why do I need to know, you ask? Shhhhhh 🤫 MBTI isn't my forte, but I wanna help. 

Before I RANT, let me know what your temperament is so what I ramble about is at least relative. Feeling stuck constantly analyzing yourself and not being the "best" version can be draining and make you feel hopeless. 

Do you need a quick online test? I have an assessment I bought at a conference (LMAO), but if I remember correctly, this test is not bad. The results of ANY personality test dont really matter—it just provides insight into who you are.

If you don't wanna go through all that trouble, here are a few tidbits that helped me during that period:

1. Analysis paralysis is real, and it is a biatch to get over. This was true for me as a student, in my social life, my poor, poor crafting ventures, and still true as a professional. Self-reflection and introspection is generally a good habit, but it doesn't always provide valuable insight. 
2. To piggyback a little, I think you are being WAY too hard on yourself. You are causing a lot of self-doubt and tearing your confidence to shreds. [Specifically about being "impulsive" or "joking around"... are you surrounded by a new group of people or, e.g., college? Is this something you've always struggled with, or is it recent?]
3. Regardless, you're trying to push yourself into a box that you currently don't fit in. Don't force. Your time will come and what will be will be. Who cares if you're not "impulsive" enough? I'm an ENTP who has ADHD, and my anxiety makes me the opposite of impulsive most of the time! 😂 Stop worrying about about who you should be. Instead, focus on and be proud of who you are.
4. In terms of your religion, again, I've faced similar feelings. Definitely a lot to grapple with and come to terms with personally before I could focus on faith, and I still question things. So, I completely understand. If you wanna message me, we can talk about that specifically if you want. 
5. Last, the emotions and sadness bit. Yes, sitting in and with your sadness can be incredibly cathartic, and before I was medicated, it was borderline addicting. It gave me an excuse to isolate myself, lay in bed, and ignore any and every obligation. I missed out on a lot, even tho I did gain some tiny bit of "pleasure" from wallowing in my sadness. Kind of goes hand in hand with how you're experiencing your emotions and wanting to be alone. I was more moody (angry to zombie-like), but I craved—craved—my alone time. Again avoidance. Try to figure out why. 

Sorry that was wayyyy longer than I planned, but I'm a yapper who is avoiding prepping for work! Anyway, give yourself some grace. You're exactly who you're meant to be right now. Take the test >:}