Wah, mummy, you're going through so much right now and it's totally normal to feel overwhelmed! The body aches, wrist pain from holding baby, and worrying if baby is getting enough milk, memang first-time mummy struggle yang real. A few of my mum friends had similar issues, especially dengan wrist pain and positioning, so don't feel alone lah. For the pain and positioning problems, honestly kena konsultasi dengan lactation consultant or your doctor, sebab they can assess proper latch and teknik yang sesuai untuk you, bukan semua position sama je. Tongue tie and the 5s technique (swaddling, side position, shushing, swinging, sucking) are things that need proper guidance, bukan boleh belajar from text je. About knowing if baby gets enough milk, wet diapers, weight gain, and baby's behaviour are signs, but again a professional can guide you better. I think the workshop registration link you shared is brilliant, looks like exactly what you need to learn from someone who knows, instead of trying everything sendiri. All the best, mummy, you're doing great for wanting to learn!