For correct posture you need to do proper assessment. If assessment not done properly we can't prescribe exercises.but you can do neck isometric, shoulder strengthening exercises, back strengthening exercises, knee strengthening.start doing streching of neck, back, legs,.do yoga and meditation.
Next Steps
avoid lifting heavy weight.
avoid High pillow during sleeping.
use proper foot wear.
Health Tips
for better treatment and advice use online app for consultation with physiotherapist .