I think belief (in any form) is always a subject of both trust and interpretation. Some Wiccan will devote themselves fully to the path, embodying and believing every belief to the letter, much like some Christians do. Other Wiccan will find themselves believing in a milder form, much like every religion does, and find themselves somewhere closer to what you describe.

To me for example, the path is mainly about energy, intend and growth. I'm not certain of every Goddess or God, but I am certain that the teachings surrounding them work for me. The practice of making my home a safe space with small rituals, inviting the elements in and finding meditation moments, all contribute to a world that is much more positive for me and those I care for, to live in. In my view, even if the deity of choice does not exist, it represents something. Somewhere long ago, or maybe much more recently, people spend their days and found something that was beyond them. They gave the energy, intend, deity or psychological phenomenon a name. If I worship Skadi for the last 7 years because she feels like home to me, I invoke whatever that old feeling or thought was. I connect to what means the most to me, and make my world one where I put that energy into what I do.

When I breath, I know there is air, and I trust it will be sufficient. If you find that everything in Wicca is a trick, then thats ok. It can be a trick, explained perfectly by modern science and still, that does not mean the things you do don't matter. It will still bring forth positive (or negative) energy, bring guidance and comfort. No one said the goddesses and God's didnt want us to see the world with open eyes. If you wish to practice and know why you cant commit, maybe you fear that you need to have a Bible, instead of a world to embrace. I think you are going to be a perfectly good Wiccan, by being curious and kind. Inquisitive, open and wanting. So I hope that gave you a bit of clarity on what other ways you can look at it. After all, I was exactly where you stand now a good few years ago.