I recently started a Roth IRA with fidelity because my new job doesn't offer a match in 401k because they offer a pension. So behind in investing I'm 40 years old I have 3 different index funds FSKAX, FTIHX, and FXNAX. 70% 20% and 10%. My question is do I just ride with these 3 or should I add another and change up the percentages. Thanks