How badly did I mess up and is there anything I can do to redeem myself ?

So I need some help figuring out how badly I fucked up and what can I do to help myself rebuild any lost relationship with god. So I went to Thailand and as an experience I went to the temple. The have golden idol of course… so my friend showed how she prays and told me what to do/say before I ask for what I want from it. I honestly just did it as an experience and didn’t mean to accept Buddha or this idol as my god. Instantly I felt regret and I been saying the beginning of shema Israel prayer and asking for forgiveness. I just feel like I made one of the biggest sins and I am afraid god will turn back on me and my future generations. Am I over reacting? TIA