C..
"deal with this" "suck it up" and "be happy" are conflicting outcomes.
Pick one.
I suggest altering your goals.
"deal with this" is a good one. This must happen first. I don't know the specifics of your loss. But I did see that it looks like you miscarried at around 12 weeks. I have had 3 miscarriages and 1 ectopic pregnancy. Miscarrying at 12 weeks was a different type of miscarriage than the pregnancies that miscarried/ended earlier. It was almost a year and required a good bit of therapy and a round of anti-anxiety meds before I was back to normal. You experienced this type of loss.... what.... weeks ago? Cut yourself some slack.
"suck it up" While good advice for most teenagers and also for when you are faced with obstacles that are irritating or necessary (for example when your boss hands you an extra project at work and informs you he must have it back by 6am.... and it's date night) and you must "suck it up" to get it completed, because, you know, it's YOUR JOB. I think using the phrase "suck it up" as it relates to overcoming grief from a miscarriage at 12 weeks is inappropriate and tells me you are doing a bit of minimizing about your situation. I refer you back to "deal with it".
"be happy". Not sure this is an entirely realistic goal, either. Be happy. About what? Your situation? Maybe (and this is a big maybe) if you are devoutly religious and believe that God has a plan for EVERYTHING you can be happy because you can have faith that your situation was a part of God's plan and it is not for you to understand. However..... even in that case the necessary and resulting emotion is not happiness it is ACCEPTANCE. Which, I believe, is what you should focus on. Acceptance and peace. Not happiness. Acceptance is a process, not an emotion. Peace is the state of being that results from achieving acceptance. Both of those take time.
I think you might benefit from meditation. This is a great way to reduce some of the emotion and focus on being present with yourself.
I am so very sorry for your loss. I do understand how you feel and the process needed to go through this. Make sure things are good with your husband. Make sure you are on the same page and that you can be support for each other.