Tamoxifen & Thyroxine

I’ve been taking them together in the morning, as pharmacist said it’s ok. But this week after doc appointment, have tried to split them with Tamoxifen in the morning & Thyroxine in the night , but have found I’m heading to bed & then I remember I’ve forgotten to take it. Easier for me to remember in the morning. Don’t know if I should keep trying to keep them separate or just take them in the morning together. Was wondering if anyone else does ?