Sorry... I went to bed. If you are still reading your replies.
The Apostles creed is really an oath, not a prayer. (It's still can be sung.)
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Here is the first book of prayer that really grabbed me, when I was a full-on Evangelical.
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https://www.amazon.com/Glenstal-Book-Prayer-Benedictine/dp/0814627676
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The New Zealand book of prayer is another one people really like.
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But there are so many.
I use them this way, personally, even if I'm not that church tradition --
OK, my personal prayers might still be lame but there is so much other richness, the whole experience is elevated.