Newlywed Intimacy issues

Hello everyone! I recently married my best friend on 4.3.21 only less than 2 months ago. He is such a blessing to me. We both came into this relationship/marriage with children from previous relationships. A 9yr old boy(his) and a 5yr old boy(mine) though we claim both of them as our own.. To make a long story short, well try to, we have a hard time trying to find alone time. He works long hours most of the time.. Mon & Tuesday he works a 12 hr shift.. Wednesday and Thursday he works 6am-2pm. You would think that Wednesday thru Saturday would be an open window but no. He doesnt like the fact that we always have a kid around to possibly hear us. I have the 5 yr old every day all day excpet every other weekend. The 9 yr old comes here when the 5 yr old goes to his biological dads house. So there is always a kid around and he cant "perform". Which is understandable but at the time sooo frustrating. He doesnt like waking me up because he has a fear of me telling him im too tired (rejection) because i stay up every night during the week to put the 5 yr old to bed, make his lunch for the next day, i write him a cute little letter every night, i take a bath (because i dont like leaving my son unattended during the day while home by ourselves) i do the dishes from the cooking i take time to watch an episode or 2 of one of my shows. Most nights i dont get to bed until about 2am or 2:30am. My question is how the heck do yall make time for eachother while having kids?!? I get so frustrated because we should not be experiencing this so early on. Sorry i know i said id try and make it short but it wasnt. Thank you for reading if you got this far!! Any advice is so appreciated! Have a blessed day!!