I have two questions dosage and blood test

Hey mtf living in UK and decided the order my first blood test done after like 4 months of hrt (Estradiol Valerate 400 mg/10 mL) taking 0.12mL every 5 days , however i feel like I'm not seeing changes after like the second month(at the beginning I was taking 0.2 ml but then found out it was 'too' high and reduced it to the 0.12) however I feel like after this lower dose my feminisation is slowing and my breast growth is little compared to before and my libido spikes out of nowhere every few weeks and the ejaculation fluid is thick. Should I increase my dose guys ?

Going back to the blood test I decided to order the finger pricking one from sapphic bison, but now i'm seeing people saying it's unreliable so did I just waste my money ):

Any advice would be great thanks <3