I am the new owner of an bearded dragon Any advice

Substrate- There is much of a hot debate on this subject. I personally stick to my guns and avoid any loose substrate. Childrens play sand, calci sand, reptile bark, wood shavings, reptile blend, reptile litter, etc all holds a risk of impaction and killing your dragon. Sand (especially calci sand) developes into clumps inside the dragons digestional track. Walnut shells, repti bark, etc can cut up the dragons intestines as well as cause impation. Your dragon also might as well be living in a litter box. Loose particle substrates also hold moisture and harbors bacteria, which isn't good for your reptile. Solid substrates look nicer are easy to clean, and are 100% safe.

Safe substrates are, non adhesive shelf-liner, ceramic tiles, newspaper, computer paper, paper towels, indoor/outdoor carpet with no loops, reptile carpet.

Bathing your dragon is very beneficial. It hydrates the beardie, aids in shedding, and helps bowl movements. Sick beardies often enjoy warm soaks also. I recommend soaking dragons atleast twice a week for 20 minutes. Fill the water up to their shoulders, and if nessacary, lay a wash cloth or towl on the bottom of the bath tub so your beardie will feel more secure in the water. The water temperatures should be "pee" warm or lukewarm, (around 95F-99F.about your body temperature. Some may perfer as low as 88F). If you have a baby or hatchling, make sure he/she can still move around in the water..be carefull not to fill it up to deep.