I like your affirmations.
I use various affirmations depending what tasks I do. I don't have an affirmation that I use.
For example, if I am learning something new, like taking the "Master Your People Skills" course and. I would visualize each day(1 through 30) and see how positively it affects those around me and that would be my positive visual affirmation. For the days I have not watched, I would place mental dividers on these days. I then would gather the days(I'm currently watching Day 28) and release those intentions throughout the day.
I've been interested in dreams and I have been able to recall my dreams since I was 5. So with my visual affirmations, to get the most bang I would take them into the dream state and house it there (think of it as cloud storage on steroids) since the dream state is based on a person's subconscious, having your affirmation within the subconscious. If you are familiar on macros in Microsoft documents or use presets on your phone this idea is similar to those but on a grand scale. The good thing is, you don't have to press any buttons to have them work. though it does take some practice and it goes beyond meditation and yoga. Meditation and yoga are passive. The best comparison I can make once you are at this stage is, it is similar to lucid dreaming if you are familiar with that term.
If you are not, lucid dreaming is defined as having the awareness that you are dreaming within a dream.
If you are, and you would like an example of this with your affirmation,"I am the architect of my life; I build its foundation and choose its contents" is a good example, This comment feels like you put more energy into in this affirmation compared to your second one although both have great energy behind them.
If we use your architect symbol and you would like to store it, the first thing you do is set your intentions, much like trying to remember your dream, you set the intention to remember. For your affirmation, we will use the same method. Depending how in tune you are this can happen immediately or it can happen in stages, meaning it could take a day or it could take a year.
I hope you didn't mind that I expended on this topic.