Help new here

Hiiii I am 6,4 feet inch boys my current weight is 95 kg my age is 20 and want to gain muscles and look asthetic I exercise in my home over 4 to 5 years and I managed to gain some muscles like my biceps are currently are 15.7 when posing and chest is 49 when I start gym I have lack of knowledge and I am now have knowledge how do exercise I am doing 40 minutes split workout every day with 5 kg dummbel in each hand but I too fat in my body can I gain muscle after 20 years ? and how much time to get physica like asthetic....?