Dream wedding … a year ahead not feeling such a dream..

I got engaged on the 8th sept 2022. We booked a wedding 24.
I am really happy. I finally have a big day I’ve dreamt of and decided to go for it.. although now finding out why everyone’s always said planning a wedding is really stressful.

However since booking our wedding a lot has changed. 1. My mum (previously had a brain tumour ) functioning has declined and she is currently in hospital, as I’m a only child there’s lots of pressure on me to put things in place. I’m really sad for my mum as her independence is gone and I feel uncertain what sort of care she will have in place when she comes home but also how things will be in March 24. 2. My step dad has been diagnosed with cancer and currently under a lot of investigations. The cancer is serious. I’m really sad about this. 3. My dad, who I thought I had a good relationship with, since getting engaged has shown no interest in me getting married, I’m really sad about this and has even suggested he might go home half way through the day and wanted to bring his dog. I’m his only daughter (child) and I can’t help feeling really sad at lack of interest in talking about anything wedding related at all, he’s even suggested saying a few sentences at the speech.. I recently went to a wedding where the father of the bride speech spoke about every life moment of his daughter life. 4. The bridesmaids, this year has been a hard year for me in relation to friendships.. one of my good friends have fallen out on two occasions .. we are now speaking as if nothing has happened but I’m the sort of person who likes to talk things through and she’s not. Normally fine.. but I have this feeling that bridesmaids are tribe and I can’t shake the feeling of not wanting an elephant in the room when I’m getting married but also if I don’t ask her I feel it might ruin things. 5. babies.. before got engaged wanted to start a family sept this year. I am 30 years old but decided to get married and wait a year. Have seen the positive in this.. but now all my friends suddenly are talking about getting pregnant soon…. Please don’t get me wrong.. my best friend just had a baby and i have to say I am the most happy for her .. really.. I’ve brought little presents along the way, offer support (but careful to not to overstep) .. however with all my other friends planning babies … I’m happy for them.. but I just feel.. my wedding will end up being at the wrong time.. all my friends won’t be able to party .. be present at the wedding and attend my hen do. I’m happy for others .. I would never dream on asking or telling or letting my friends know how I feel as I know you should never plan your life around someone else’s timeline. it’s just I’ve been dreaming of this for years .. now I’m Finally engaged .. it feels life is changing a lot more around me.
So because of the above. (Thankyou for taking the time to read) I’m starting to have second thoughts about my wedding. in terms of marrying my husbands to be.. i have no doubts about that.
Please be as honest as you like.. tell me to get a grip I probably need it. .. I just feel lots of worry, dread about the next year.. and sad really .. the wedding I thought I’d have one day is feeling it won’t be that at all.