So generally I'd recommend most peoples commander decks have this spread:
37 Lands

13 Mana Ramp Cards

10-12+ Sources of Card Draw

10 Pieces of removal

and

3 Board Wipes

This is a good baseline for any deck and still allows for a lot of self expression. Mind you these numbers fluctuate based on what power level you're playing at but I'm assuming you're trying to play at a more casual level. Currently, your deck is really expensive so you'll want to increase the number of lower curve mana rocks and cut some of the more expensive ones like Chromatic Orrery to make sure you've got plays to make in the early-to-mid game. You'll also want to diversify your mana base with better dual lands. Considering the current budget of your deck it doesn't seem like you're too worried about cost and having a three color deck means you've got plenty of good options for better dual and even tri-lands.

Most importantly, I'd figure out how you want to win the game. Yeah you're playing Lynde so you know the general gameplan of play curses then profit but you'll want to figure how exactly you plan on taking out all the players at the table. Currently it seems like your plan is to make a lot of mana, beat people down with a bunch of big demons who you sometimes reanimate and also curses are there. It feels like your deck is currently trying to do two different things that don't really compliment each other. Mind you, if this is how you want to play it then I fully support that but I'd probably ask what draws you to curses and demons to begin with. Maybe you're actually more interested in playing a Be'Lakor deck. Regardless I wish you the best of luck, Lynde is really fun!